Bolt Specifications (setup)

Australian

Canadian

ASD 9th

LRFD 3rd

Eurocode

The tab selected by default is your currently selected " Connection design method ."

Bottom row of buttons:
- " OK " " Cancel " " Reset "

Also see :

Washer Settings (to assign washers to bolt type entered here)
Connection design method (sets which tab on this window applies)
Bolt Settings (to assign type to default situations)
Hole Edit window (to assign type to individual bolts)
Bolt Type (to assign type to individual beam connections)

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To open Bolt Specifications :

Method 1 : Home > Project Settings > Job > Bolts, Washers, and Holes > Bolt Specifications .

Methods 2, 3 & 4 : In Modeling or the Drawing Editor , choose Settings > Job Settings > Bolt Specifications (classic), or use a keyboard shortcut , or click the icon.

Password protection: If a password has been set using the Change Setup Password utility, you can open this window only if you first enter that exact password.

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How to add new bolt types :

Warning: Typically it is not a good idea to edit information on the Bolt Specifications that has been placed there by default. The values that are assigned to these bolts are the actual values specified for that particular type. Changing these values would have the effect of making a particular type of bolt behave as though it had a different ability to withstand shear stress or maximum tension than it actually does. However, you may wish to add new bolt types to the schedule so that they become selectable ( ) on list boxes for bolt type throughout your current Job (for example, on the " NM bolt type to supported " list box).

Before using the Bolt Specifications : Enter steel grades for ' Nuts ' on the Nut and Washer Schedule . These are the grades that are selectable on the list boxes ( ) for " Nut Grade ."

1 . Open the Bolt Specifications .

2 . When you first open this window, the tab that is selected by default corresponds to the " Connection design method " that you are using. That is the tab that you need to fill out.

Connection design method	tab on this window
ASD16 or LRFD16	AISC 16th
ASD15 or LRFD15	AISC 15th
ASD14 or LRFD14	AISC 14th
ASD13 or LRFD13	AISC 13th
AS 4100	Australian
CISC	Canadian
ASD9	ASD 9th
LRFD3	LRFD 3rd
EUROCODE3 or EUROCODE3 UK	Eurocode

3 . In a row where no bolt has yet been defined, click in the " Bolt " column so that a text insertion bar appears in that field. Type in the name you want to give the bolt. Press the Tab key to move to the next column in the same row, fill out the information, then do the same for each column. To back up, use Shift + Tab .

4 . Once you have filled out all of the information for a particular bolt type, you can select this newly added bolt as the " Bolt type " for individual beam connections and in other " Bolt Type " list boxes throughout your current Job.

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AISC 13th

Australian

Canadian

ASD 9th

LRFD 3rd

Eurocode

tells you the units for " Shear " and " Tension ." Bolts defined under this tab apply when ' ASD13 ' or ' LRFD13 ' is the " Connection design method. "

Bolt: Any character string (up to 9 characters) to designate the name of the bolt type. A bolt defined here becomes selectable ( ) on list boxes for bolt type throughout your current Job (for example, as the " NM bolt type to supported ").

Allowable entries: The bolt type name entered here can be any name you like ( Fred , Louise , Harvey ). It is a good idea to only add bolts that are recognized within the industry as having particular properties suitable for use in steel construction.

Material: A307 or A325 or A490 or F1852 or F2280 are the material types filled out on this table in the default Job Settings file. Any other materials that may appear on this window have been added by users.

The default bolt set: Connection design recognizes A325/F1852 and A490/F2280 as materials for high strength connections. A307 material is recognized as material for "soft bolts" and used for " Erection bolts ."

Restrictions: A material other than A325/F1852 or A490/F2280 that is used for bolts in a moment end plate causes failure of the connection and produces the error message: " Design valid only for A325/F1852 or A490/F2280 bolts ." For a shear plate, you get the error message: " Design valid only for A325 or F1852 bolts " if material other than A325/F1852 is used for the bolt.

Connection Method: Bearing Threads INC or Bearing Threads EXC or Slip Critical . AISC 13th Edition: Values entered here are used for bearing type bolts per equation J3-1 (AISC Steel Construction Manual , Thirteenth Edition , pg 16.1-108). For slip-critical bolts, connection design calculates the strength limit state using equation J3-4 (AISC Steel Construction Manual , Thirteenth Edition , pg 16.1-109).

' Bearing Threads INC ' is for a bearing-type connection with threads included in the shear plane.

' Bearing Threads EXC ' is for a bearing-type connection with threads excluded from the shear plane.

' Slip Critical ' is for bolts in slip-critical connections. For ' Slip Critical ' bolts, you also have to enter a " Surface Class ." Connection design uses the " AISC 13th edition limit state for slip-critical bolt design " that is set in Bolt Settings when designing slip-critical bolts.

Surface Class: A or B . This applies when the selected " Connection Method " is ' Slip Critical '.

Class ' A ' has a Slip Coefficient of 0.35 and applies to uncoated clean mill scale steel surfaces and blast-cleaned steel surfaces with Class A coatings.

Class ' B ' has a Slip Coefficient of 0.50 and applies to uncoated blast-cleaned steel surfaces and blast-cleaned steel surfaces with Class B coatings.

---- Hole Factors, hsc ----
(apply to ' Slip Critical ' bolts only)

Standard: The hole factor ( hsc ) for calculating the nominal slip resistance ( Rn ) for the bolt being defined when it is used in a standard round hole in a slip-critical connection. AISC 13th Edition: For slip-critical bolts, connection design calculates the strength limit state using equation J3-4 on pg 16.1-109.

Oversized: Same as " Standard ," except that this applies to oversized holes.

Short Slot: Same as " Standard ," except that this applies to short slots.

Long Slot: Same as " Standard ," except that this applies to long slots.

Shear (Fnv): The nominal shear stress ( Fnv ) for the type of bolt being defined (in ksi or MPa, depending on the primary dimension " Units ").

AISC Thirteenth Edition: The default values entered here are from Table J3.2 on page 16.1-104.

Tension (Fnt): The nominal tensile stress ( Fnt ) for the type of bolt being defined (in ksi or MPa, depending on the primary dimension " Units ").

AISC Thirteenth Edition: The default values entered here are from Table J3.2 on page 16.1-104.

Nut Grade: Any grade that has been entered to the Nut and Washer Schedule can be selected ( ) here, on this list box . Line 1 on the Washer and Nut Schedule sets the default grade that is selected when you create a new bolt definition.

When connection design applies a heavy hex nut to the primary position on a bolt, it uses the grade that is selected here as the " Primary nut grade ."

Tip: Although you can select any grade that is entered on the Nut and Washer Schedule , you should only select those grades that apply to heavy hex nuts.

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AISC 13th

AISC 14th

Australian

Canadian

ASD 9th

LRFD 3rd

Eurocode

tells you the units for " Shear " and " Tension ." Bolts defined under this tab apply when ' ASD14 ' or ' LRFD14 ' is the " Connection design method. "

Allowable entries: The bolt type name entered here can be any name you like (Fred, Louise, Harvey). It is a good idea to only add bolts that are recognized within the industry as having particular properties suitable for use in steel construction.

The default bolt set: Connection design recognizes A325/F1852 and A490/F2280 as materials for high strength connections. A307 material is recognized as material for "soft bolts" and used for " Erection bolts ."

Restrictions: A material other than A325/F1852 or A490/F2280 that is used for bolts in a moment end plate causes failure of the connection and produces the error message: " Design valid only for A325/F1852 or A490/F2280 bolts ." For a shear plate, you get the error message: " Design valid only for A325 or F1852 bolts " if material other than A325/F1852 is used for the bolt.

Connection Method: Bearing Threads INC or Bearing Threads EXC or Slip Critical . AISC 14th Edition: Values entered here are used for bearing type bolts per equation J3-1 (AISC Steel Construction Manual , Fourteenth Edition , pg 16.1-125). For slip-critical bolts, connection design calculates the strength limit state using equation J3-4 (AISC Steel Construction Manual , Fourteenth Edition , pg 16.1-126).

' Bearing Threads INC ' is for a bearing-type connection with threads included in the shear plane.

' Bearing Threads EXC ' is for a bearing-type connection with threads excluded from the shear plane.

' Slip Critical ' is for bolts in slip-critical connections. For ' Slip Critical ' bolts, you also have to enter a " Surface Class ."

Surface Class: A or B . This applies when the selected " Connection Method " is ' Slip Critical '.

Class ' A ' has a Slip Coefficient of 0.30 and applies to uncoated clean mill scale steel surfaces and blast-cleaned steel surfaces with Class A coatings.

Class ' B ' has a Slip Coefficient of 0.50 and applies to uncoated blast-cleaned steel surfaces and blast-cleaned steel surfaces with Class B coatings.

Shear (Fnv): The nominal shear stress ( Fnv ) for the type of bolt being defined (in ksi or MPa, depending on the primary dimension " Units ").

AISC Fourteenth Edition: The default values entered here are from Table J3.2 on page 16.1-120.

Tension (Fnt): The nominal tensile stress ( Fnt ) for the type of bolt being defined (in ksi or MPa, depending on the primary dimension " Units ").

AISC Fourteenth Edition: The default values entered here are from Table J3.2 on page 16.1-120.

When connection design applies a heavy hex nut to the primary position on a bolt, it uses the grade that is selected here as the " Primary nut grade ."

Tip: Although you can select any grade that is entered on the Nut and Washer Schedule , you should only select those grades that apply to heavy hex nuts.

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AISC 13th

AISC 15th

Australian

Canadian

ASD 9th

LRFD 3rd

Eurocode

tells you the units for " Shear " and " Tension ." Bolts defined under this tab apply when ' ASD15 ' or ' LRFD15 ' is the " Connection design method. "

Allowable entries: The bolt type name entered here can be any name you like (Fred, Louise, Harvey). It is a good idea to only add bolts that are recognized within the industry as having particular properties suitable for use in steel construction.

The default bolt set: Connection design recognizes A325/F1852 and A490/F2280 as materials for high strength connections. A307 material is recognized as material for "soft bolts" and used for " Erection bolts ."

Restrictions: A material other than A325/F1852 or A490/F2280 that is used for bolts in a moment end plate causes failure of the connection and produces the error message: " Design valid only for A325/F1852 or A490/F2280 bolts ." For a shear plate, you get the error message: " Design valid only for A325 or F1852 bolts " if material other than A325/F1852 is used for the bolt.

Group: A or B according to the material strength of high-strength bolts.

AISC Fifteenth Edition: The default values entered here are defined in section J3.1 (AISC Steel Construction Manual , Fifteenth Edition , pg 16.1-126).

Group A: A325 and F1852

Group B: A490 and F2280

Connection Method: Bearing Threads INC or Bearing Threads EXC or Slip Critical . AISC 15th Edition: Values entered here are used for bearing type bolts per equation J3-1 (AISC Steel Construction Manual , Fifteenth Edition , pg 16.1-131). For slip-critical bolts, connection design calculates the strength limit state using equation J3-4 (AISC Steel Construction Manual , Fifteenth Edition , pg 16.1-134).

' Bearing Threads INC ' is for a bearing-type connection with threads included in the shear plane.

' Bearing Threads EXC ' is for a bearing-type connection with threads excluded from the shear plane.

' Slip Critical ' is for bolts in slip-critical connections. For ' Slip Critical ' bolts, you also have to enter a " Surface Class ."

Surface Class: A or B . This applies when the selected " Connection Method " is ' Slip Critical '.

Class ' A ' has a Slip Coefficient of 0.30 and applies to uncoated clean mill scale steel surfaces and blast-cleaned steel surfaces with Class A coatings.

Class ' B ' has a Slip Coefficient of 0.50 and applies to uncoated blast-cleaned steel surfaces and blast-cleaned steel surfaces with Class B coatings.

Shear (Fnv): The nominal shear stress ( Fnv ) for the type of bolt being defined (in ksi or MPa, depending on the primary dimension " Units ").

AISC Fifteenth Edition: The default values entered here are from Table J3.2 on page 16.1-129.

Tension (Fnt): The nominal tensile stress ( Fnt ) for the type of bolt being defined (in ksi or MPa, depending on the primary dimension " Units ").

AISC Fifteenth Edition: The default values entered here are from Table J3.2 on page 16.1-129.

When connection design applies a heavy hex nut to the primary position on a bolt, it uses the grade that is selected here as the " Primary nut grade ."

Tip: Although you can select any grade that is entered on the Nut and Washer Schedule , you should only select those grades that apply to heavy hex nuts.

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AISC 13th

AISC 16th

Australian

Canadian

ASD 9th

LRFD 3rd

Eurocode

tells you the units for " Shear " and " Tension ." Bolts defined under this tab apply when ' ASD16 ' or ' LRFD16 ' is the " Connection design method. "

Allowable entries: The bolt type name entered here can be any name you like (Fred, Louise, Harvey). It is a good idea to only add bolts that are recognized within the industry as having particular properties suitable for use in steel construction.

Material: A307 or A325 or A490 or F1852 or F2280 or F3148 are the material types filled out on this table in the default Job Settings file. Any other materials that may appear on this window have been added by users.

The default bolt set: Connection design recognizes A325/F1852, A490/F2280, and F3148 as materials for high strength connections. A307 material is recognized as material for "soft bolts" and used for " Erection bolts ."

Restrictions: A material other than A325/F1852, A490/F2280, or F3148 that is used for bolts in a moment end plate causes failure of the connection and produces the error message: " Design valid only for A325/F1852 or A490/F2280 bolts ." A material other than A325/F1852, A490/F2280, or F3148 that is used for bolts in a shear plate causes failure of the connection and produces the error message: " Design valid only for A325 or F1852 bolts ."

Group: 120 or 144 or 150 according to the material strength of high-strength bolts.

AISC Sixteenth Edition: The default values entered here are defined in section J3.2 (AISC Steel Construction Manual, Sixteenth Edition, pg 16.1-134).

Group 120: A325 and F1852

Group 144: F3148

Group 150: A490 and F2280

Connection Method: Bearing Threads INC or Bearing Threads EXC or Slip Critical . AISC 16th Edition: Values entered here are used for bearing type bolts per equation J3-1 (AISC Steel Construction Manual, Sixteenth Edition, pg 16.1-141). For slip-critical bolts, connection design calculates the strength limit state using equation J3-4 (AISC Steel Construction Manual , Sixteenth Edition , pg 16.1-142).

' Bearing Threads INC ' is for a bearing-type connection with threads included in the shear plane.

' Bearing Threads EXC ' is for a bearing-type connection with threads excluded from the shear plane.

' Slip Critical ' is for bolts in slip-critical connections. For ' Slip Critical ' bolts, you also have to enter a " Surface Class ."

Surface Class: A or B . This applies when the selected " Connection Method " is ' Slip Critical '.

Class ' A ' has a Slip Coefficient of 0.30 and applies to "unpainted clean mill scale steel surfaces or surfaces with Class A coatings on blast-cleaned steel or hot-dipped galvanized steel whether as-galvanized or hand roughened" per J3.9 (AISC Steel Construction Manual, Sixteenth Edition, pg 16.1-142).

Class ' B ' has a Slip Coefficient of 0.50 and applies to "unpainted blast-cleaned steel surfaces or surfaces with Class B coatings on blast-cleaned steel" per J3.9 (AISC Steel Construction Manual, Sixteenth Edition, pg 16.1-143).

Shear (Fnv): The nominal shear stress ( Fnv ) for the type of bolt being defined (in ksi or MPa, depending on the primary dimension " Units ").

AISC Sixteenth Edition: The default values entered here are from Table J3.2 on page 16.1-137.

Tension (Fnt): The nominal tensile stress ( Fnt ) for the type of bolt being defined (in ksi or MPa, depending on the primary dimension " Units ").

AISC Sixteenth Edition: The default values entered here are from Table J3.2 on page 16.1-137.

When connection design applies a heavy hex nut to the primary position on a bolt, it uses the grade that is selected here as the " Primary nut grade ."

Tip: Although you can select any grade that is entered on the Nut and Washer Schedule , you should only select those grades that apply to heavy hex nuts.

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AISC 13th

Australian

Canadian

ASD 9th

LRFD 3rd

Eurocode

tells you the units for " Tension ." Bolts defined under this tab apply when ' AS 4100 ' is the " Connection design method. "

46/S and 8.8/S and 8.8/TB and 8.8/TF are bolt types that are filled out on this table in the default Job Settings file. Refer to Table 9.3.1 on page 99 of the AS 4100 - 1998 . Any other bolts that may appear on this window have been added by users.

Restrictions: If you use a bolt other than 8.8/TB or 8.8/TF for a moment end plate, connection design fails the connection and gives you the error message: " Design valid only for 8.8/TB or 8.8/TF bolts ."

Bolt standard: AS/NZS 111 or AS/NZS 1252 are standards that are filled out on this table in the default Job Settings file. You can add other standards if you choose. Refer to Table 9.3.1 on page 99 of the AS 4100 - 1998 .

Grade: 4.6 or 8.8 are the choices that are filled out on this table in the default Job Settings file. Refer to Table 9.3.1 on page 99 of the AS 4100 - 1998 .

Method of Tightening: Snug Tight or Full Tensioning . Refer to Table 9.3.1 on page 99 of the AS 4100 - 1998 .

Connection Method: Bearing-type or Slip Critical (friction type connections in which slip in the serviceability limit state is required to be limited). Refer to Table 9.3.1 on page 99 of the AS 4100 - 1998 .

Slip Factor: The slip factor as specified in Clause 9.3.3.2 on page 101 of the AS 4100 - 1998 .

Standard: The hole type factor ( kh ) for calculating the shear capacity ( Vsf ) for the bolt being defined when it is used in a standard hole in a slip-critical connection. See Clause 9.3.3.1 on page 101 of the AS 4100 - 1998 .

Oversized: Same as " Standard ," except that this applies to oversized holes.

Short Slot: Same as " Standard ," except that this applies to short slots.

Long Slot: Same as " Standard ," except that this applies to long slots.

Tension: The minimum tensile strength ( fuf ) in ksi or MPa (depending on the primary dimension " Units "). Refer to Table 9.3.1 on page 99 of the AS 4100 - 1998 .

Nut Grade: Any grade that has been entered to the Nut and Washer Schedule can be selected ( ) here, on this list box . Line 1 on the Washer and Nut Schedule sets the default grade that is selected when you create a new bolt definition.

When connection design applies a heavy hex nut to the primary position on a bolt, it uses the grade that is selected here as the " Primary nut grade ."

Tip: Although you can select any grade that is entered on the Nut and Washer Schedule , you should only select those grades that apply to heavy hex nuts.

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AISC 13th

Australian

Canadian

ASD 9th

LRFD 3rd

Eurocode

tells you the units for " Tension " and " Reduced Tension ." Bolts defined under this tab apply when ' CISC ' is the " Connection design method. "

Material: A307 or A325 or A490 or F1852 or F2280 are the material types filled out on this table in the default Job Settings file (see below for allowable entries). Any other materials that may appear on this window have been added by users.

The default bolt set: Connection design recognizes A325/F1852 and A490/F2280 as materials for high strength connections. A307 material is recognized as material for "soft bolts" and used for " Erection bolts ."

Restrictions: A material other than A325/F1852 or A490/F2280 that is used for bolts in a moment end plate causes failure of the connection and produces the error message: " Design valid only for A325/F1852 or A490/F2280 bolts ." For a shear plate, you get the error message: " Design valid only for A325 or F1852 bolts " if material other than A325/F1852 is used for the bolt.

Connection Method: Bearing Threads INC or Bearing Threads EXC or Slip Critical .

' Bearing Threads INC ' is for a bearing-type connection with threads included in the shear plane.

' Bearing Threads EXC ' is for a bearing-type connection with threads excluded from the shear plane.

' Slip Critical ' is for bolts in slip-critical connections. For ' Slip Critical ' bolts, you also have to enter a " Surface Class ."

Surface Class: A or B or C . This applies when the selected " Connection Method " is ' Slip Critical '.

Class ' A ' applies to clean mill scale and blast-cleaned surfaces with Class A coatings.

Class ' B ' applies to blast-cleaned surfaces and blast-cleaned surfaces with Class B coatings.

Class ' C ' applies to hot dip galvanized with wire brushed surfaces.

Ks: The mean slip coefficient ( Ks ) used to determine the slip resistance of a bolted joint subjected to shear in a slip-critical connection. Refer to Clause 13.12.2.2 on page 1-38 and to Table 3 on page 1-117 of the CISC , Eighth Edition.

C1: The coefficient ( C1 ) used to determine the slip resistance of a bolted joint subjected to shear in a slip-critical connection. Refer to Clause 13.12.2.2 on page 1-38 and to Table 3 on page 1-117 of the CISC , Eighth Edition.

Thread Factor: The factor to be applied to the calculation of Vr in Clause 13.12.1 on page 1-38 of the CISC , Eighth Edition. When the " Connection method " is ' Bearing Threads EXC ', the default factor is ' 1 '. When the " Connection method " is ' Bearing Threads INC ', the default factor is ' 0.70 '.

Tension: The specified minimum tensile strength ( Fu ) in ksi (MPa for ' Metric ') for bolts whose diameters are less than or equal to the " Limiting Bolt Dia (in inches) ". See Clause 13.12.1.1 on page 1-38 of the CISC , Eighth Edition.

Limiting Bolt Dia (in inches): The bolt diameter (in inches) that divides where connection design applies the " Tension " or the " Reduced Tension " to the bolt. See Clause 13.12.1.1 on page 1-38 of the CISC , Eighth Edition.

Reduced Tension: The specified minimum tensile strength ( Fu ) in ksi (MPa for ' Metric ') for bolts that are larger in diameter than the " Limiting Bolt Dia (in inches) ". See Clause 13.12.1.1 on page 1-38 of the CISC , Eighth Edition.

When connection design applies a heavy hex nut to the primary position on a bolt, it uses the grade that is selected here as the " Primary nut grade ."

Tip: Although you can select any grade that is entered on the Nut and Washer Schedule , you should only select those grades that apply to heavy hex nuts.

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AISC 13th

Australian

Canadian

ASD 9th

LRFD 3rd

Eurocode

tells you the units for " Standard " " Oversized " " Short Slot " " Long Slot " and " Tension ." Bolts defined under this tab apply when ' ASD9 ' is the " Connection design method. "

Allowable entries: The bolt type name entered here can be any name you like ( Fred , Louise , Harvey ). It is a good idea to only add bolts that are recognized within the industry as having particular properties suitable for use in steel construction.

Material: A307 or A325 or A490 are the material types filled out on this table in the default Job Settings file. Any other materials that may appear on this window have been added by users.

The default bolt set: Connection design recognizes A325/F1852 and A490/F2280 as materials for high strength connections. A307 material is recognized as material for "soft bolts" and used for " Erection bolts ."

Restrictions: A material other than A325/F1852 or A490/F2280 that is used for bolts in a moment end plate causes failure of the connection and produces the error message: " Design valid only for A325/F1852 or A490/F2280 bolts ." For a shear plate, you get the error message: " Design valid only for A325 or F1852 bolts " if material other than A325/F1852 is used for the bolt.

Connection Method: Bearing Threads INC or Bearing Threads EXC or Slip Critical .

' Bearing Threads INC ' is for a bearing-type connection with threads included in the shear plane.

' Bearing Threads EXC ' is for a bearing-type connection with threads excluded from the shear plane.

' Slip Critical ' is for slip critical bolts. For ' Slip Critical ' bolts, you must also enter a surface class.

Surface Class: A or B or C . Cells in this column are disabled when the " Connection Method " selected is ' Slip Critical '.

Class ' A ' has a Slip Coefficient of 0.33 and applies to clean mill scale and blast-cleaned surfaces with Class A coatings.

Class ' B ' has a Slip Coefficient of 0.50 and applies to blast-cleaned surfaces and blast-cleaned surfaces with Class B coatings.

Class ' C ' has a Slip Coefficient of 0.40 and applies to hot dip galvanized and roughened surfaces.

Note: For ' ASD9 ', the default " Standard ASD " " Oversized ASD " " Short Slot ASD " and " Long Slot ASD " values for slip critical bolts are assigned by " Surface Class " per Table 3 on page 5-271.

Standard ASD: The maximum allowable shear stress in ksi for ' Imperial ' (or MPa for ' Metric ') that the type of bolt being defined can withstand when used in a standard hole. A standard hole is a round hole that is typically 1/16 inch larger than the bolt diameter.

ASD 9th Edition: The default values entered here for ' ASD9 ' are Fv from Table I-D on page 4-5. Slip critical values are from Table 3 on page 5-271.

Oversized ASD: The maximum allowable shear stress in ksi (MPa for ' Metric ') for the type of bolt being defined when used in an oversized hole. An oversized hole is a round hole that is typically 1/8 inch larger than the bolt diameter.

ASD 9th Edition: The default values entered here for ' ASD9 ' are Fv from Table I-D on page 4-5. Slip critical values are from Table 3 on page 5-271.

Short Slot ASD: The maximum allowable shear stress in ksi (MPa for ' Metric ') for the type of bolt being defined when it is used in a short slot.

ASD 9th Edition: The default values entered here for ' ASD9 ' are Fv from Table I-D on page 4-5. Slip critical values are from Table 3 on page 5-271.

Long Slot ASD: The maximum allowable shear stress in ksi (MPa for ' Metric ') for the type of bolt being defined when it is used in a long slot.

ASD 9th Edition: The default values entered here for ' ASD9 ' are Fv from Table I-D on page 4-5. Slip critical values are from Table 3 on page 5-271.

Tension ASD: The maximum allowable tension in ksi (MPa for ' Metric ') for the type of bolt being entered.

When connection design applies a heavy hex nut to the primary position on a bolt, it uses the grade that is selected here as the " Primary nut grade ."

Tip: Although you can select any grade that is entered on the Nut and Washer Schedule , you should only select those grades that apply to heavy hex nuts.

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AISC 13th

Australian

Canadian

ASD 9th

LRFD 3rd

Eurocode

tells you the units for " Standard " " Oversized " " Short Slot " " Long Slot " and " Tension ." Bolts defined under this tab apply when ' LRFD3 ' is the " Connection design method. "

Allowable entries: The bolt type name entered here can be any name you like ( Fred , Louise , Harvey ). It is a good idea to only add bolts that are recognized within the industry as having particular properties suitable for use in steel construction.

The default bolt set: Connection design recognizes A325/F1852 and A490/F2280 as materials for high strength connections. A307 material is recognized as material for "soft bolts" and used for " Erection bolts ."

Restrictions: A material other than A325/F1852 or A490/F2280 that is used for bolts in a moment end plate causes failure of the connection and produces the error message: " Design valid only for A325/F1852 or A490/F2280 bolts ." For a shear plate, you get the error message: " Design valid only for A325 or F1852 bolts " if material other than A325/F1852 is used for the bolt.

Connection Method: Bearing Threads INC or Bearing Threads EXC or Slip Critical .

' Bearing Threads INC ' is for a bearing-type connection with threads included in the shear plane.

' Bearing Threads EXC ' is for a bearing-type connection with threads excluded from the shear plane.

' Slip Critical ' is for slip critical bolts. Note 1: " Standard " " Oversized " " Short Slot " and " Long Slot " are disabled when ' Slip Critical " is selected -- connection design automatically makes the appropriate calculations during Process and Create Solids using the slip coefficient associated with the " Surface Class " entered. Note 2: For ' Slip Critical ' bolts, you need to enter a " Surface Class ."

Surface Class: A or B or C . This applies when the " Connection Method " is ' Slip Critical '.

Class ' A ' has a Slip Coefficient of 0.33 and applies to clean mill scale and blast-cleaned surfaces with Class A coatings.

Class ' B ' has a Slip Coefficient of 0.50 and applies to blast-cleaned surfaces and blast-cleaned surfaces with Class B coatings.

Class ' C ' has a Slip Coefficient of 0.40 and applies to hot dip galvanized and roughened surfaces.

Standard LRFD: The maximum allowable shear stress in ksi for ' Imperial ' (orMPa for ' Metric ') that the type of bolt being defined can withstand when used in a standard hole. A standard hole is a round hole that is typically 1/16 inch larger than the bolt diameter.

LRFD 3rd Edition: The default values for ' LRFD3 ' are from Table J3.2 on page 16.1-61.

Oversized LRFD: The maximum allowable shear stress in ksi (MPa for ' Metric ') for the type of bolt being defined when used in an oversized hole. An oversized hole is a round hole that is typically 1/8 inch larger than the bolt diameter.

LRFD 3rd Edition: The default values for ' LRFD3 ' are from Table J3.2 on page 16.1-61.

Short Slot LRFD: The maximum allowable shear stress in ksi (MPa for ' Metric ') for the type of bolt being defined when it is used in a short slot.

LRFD 3rd Edition: The default values for ' LRFD3 ' are from Table J3.2 on page 16.1-61.

Long Slot LRFD: The maximum allowable shear stress in ksi (MPa for ' Metric ') for the type of bolt being defined when it is used in a long slot.

LRFD 3rd Edition: The default values for ' LRFD3 ' are from Table J3.2 on page 16.1-61.

Tension LRFD: The nominal tensile strength in ksi (MPa for ' Metric ') for the type of bolt being entered.

LRFD 3rd Edition: The default values for ' LRFD3 ' are from Table J3.2 on page 16.1-61.

When connection design applies a heavy hex nut to the primary position on a bolt, it uses the grade that is selected here as the " Primary nut grade ."

Tip: Although you can select any grade that is entered on the Nut and Washer Schedule , you should only select those grades that apply to heavy hex nuts.

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AISC 13th