Figure B7
PIPING PRODUCTS
B7 STUD BOLT WITH GRADE 2H
HEAVY HEX NUTS ASSEMBLED
Features
•• Sold•in•Individual•Sets•or•Box•Quantities
•• Studs:
•○ Grade•B7
•○ Full•Threaded•Rod•Stud•Bolts
•○ Chamfered•Flat•Faced•Ends
•○ Manufactured•from•Chromium-Molybdenum•Ferritic•Alloy•
Steel
•○ Tensile•Strength:•125•KSI•Min.
•○ Hardness•35•HRC•Max.
•• Nuts:
•○ Grade•2H
•○ Heavy•Hex
•○ Single-Chamfered•with•Bottom•Washer•Face
•○ Manufactured•from•Carbon•Steel
•○ Rockwell•Hardness:•C24•to•C38
•• Threads:
•○ 1”•Diameter•&•Smaller•-•Unied•Inch•Coarse•Series•
(UNC),•Class•2A
•○ 1-1/8”•Diameter•&•Larger•-•Unied•Inch•8•Thread•Series•
(UN8),•Class•2A
•• Plain•Finish•Coated•with•Light•Protective•Oil
•• Right•Hand•Threads
•• Heat•Treated
•• Manufacturer•Identication•and•Grade•Marks•on•All•Stocked•
Studs•and•Nuts
•• Studs•and•Nuts•are•Heat•Code•Traceable
•• Material•Test•Reports•(MTRs)•Available•on•Demand•(for•box•
quantities•only)*
•• Stud•and•Nut•Sets•are•Lot•Number•Traceable•(for•box•
quantities•only)*
Markings
Studs•and•nuts•are•marked•per•
ASTM•requirements
•• Manufacturer•Mark:•HY•
(hex•nut•marks•can•vary)
•• Stud•Grade•Mark:•B7
•• Hex•Nut•Grade•Mark:•2H
Standards
•• Studs:
•○ Material•&•Mechanical•Properties:•ASTM•A193•Grade•B7
•○ Threads:•ASME•B1.1,•UNC•or•UN8,•Class•2A
•• Nuts:
•○ Material•&•Mechanical•Properties:•ASTM•A194•Grade•2H
•○ Dimensions:•ASME•B18.2.2
*•Heat•codes•and•lot•numbers•are•listed•on•box•labels.••Open•box•contents•
throughout•the•distribution•system•can•not•be•guaranteed,•therefore•MTRs•are•
only•available•on•full•box•quantities•and•must•be•requested•at•time•of•order.•
Figure Number Matrix
DIAMETER
• 1/2”•=•D050
• 5/8”•=•D062
• 3/4”•=•D075
• 7/8”•=•D087
• 1”•=•D100
•1-1/8”•=•D112
•1-1/4”•=•D125
•1-1/2”•=•D150
Note:••Not•all•combinations•of•diameter•by•length•are•stocked.••See•back•page•for•a•
list•of•stocked•model•numbers.•1-1/8”•&•larger•stud•sets•are•UN8•threads.
www.fnw.com
FNW B7 D075 L0550
LENGTH
•2-1/2”•=•L0250
•2-3/4”•=•L0275
• 3”•=•L0300
•3-1/4”•=•L0325
•3-1/2”•=•L0350
•3-3/4”•=•L0375
• 4”•=•L0400
•4-1/4”•=•L0425
•4-1/2”•=•L0450
•4-3/4”•=•L0475
• 5”•=•L0500
•5-1/4”•=•L0525
•5-1/2”•=•L0550
• 6”•=•L0600
•6-1/2”•=•L0650
•6-3/4”•=•L0675
• 7”•=•L0700
•7-1/2”•=•L0750
• 8”•=•L0800
• 9”•=•L0900
PIPING PRODUCTS
B7 STUD BOLT WITH GRADE 2H
HEAVY HEX NUTS ASSEMBLED
Figure B7
Part Numbers & Dimensions
D
Part Numbers
FNWB7D050L0250
FNWB7D050L0275 2-3/4 0.27 100
FNWB7D050L0300 3 0.28 96
FNWB7D062L0300
FNWB7D062L0325 3-1/4 0.49 54
FNWB7D062L0350 3-1/2 0.50 50
FNWB7D062L0375 3-3/4 0.52 50
FNWB7D062L0400 4 0.54 50
FNWB7D062L0450 4-1/2 0.57 46
FNWB7D075L0350
FNWB7D075L0375 3-3/4 0.80 32
FNWB7D075L0400 4 0.83 30
FNWB7D075L0425 4-1/4 0.85 30
FNWB7D075L0450 4-1/2 0.88 30
FNWB7D075L0475 4-3/4 0.90 30
FNWB7D075L0550 5-1/2 0.98 24
FNWB7D075L0600 6 1.03 24
FNWB7D087L0450
FNWB7D087L0475 4-3/4 1.31 20
FNWB7D087L0550 5-1/2 1.41 18
FNWB7D087L0600 6 1.48 18
FNWB7D087L0800 8 1.77 14
FNWB7D087L0850 8-1/2 1.84 14
FNWB7D100L0525
FNWB7D100L0650 6-1/2 2.11 12
FNWB7D112L0600
FNWB7D112L0650 6-1/2 2.81 8
FNWB7D112L0675 6-3/4 2.87 8
FNWB7D112L0700 7 2.93 8
FNWB7D125L0700
FNWB7D125L0750 7-1/2 3.91 6
FNWB7D125L0800 8 4.06 6
FNWB7D150L0900
*•Diameters•1-1/8”•and•larger•are•UN8
(inch)
(UNC)*
1/2•-•13
5/8•-•11
3/4•-•10
7/8•-•9
1•-•8
1-1/8•-•8
1-1/4•-•8
1-1/2•-•8 9 2-3/8 1-15/32 6.74 4
L
(inch)F(inch)H(inch)
2-1/2
7/8 31/64
3
1-1/16 39/64
3-1/2
1-1/4 47/64
4-1/2
1-7/16 55/64
5-1/4
1-5/8 63/64
6
1-13/16 1-7/64
7
2 1-7/32
Weight
Per Set
(lbs.)
0.25 100
0.47 54
0.78 32
1.27 20
1.87 14
2.69 10
3.76 6
Box
Qty
Recommended Lengths for Flanges
Stud Size Per Flange Rating*
Flange
Size
Diameter
(in-TPI)
1/2
1/2•-•13 2•1/2 4 1/2•-•13 2•1/2 4
3/4
1/2•-•13 2•1/2 4 5/8•-•11 3 4
1
1/2•-•13 2•1/2 4 5/8•-•11 3 4
1-1/4
1-1/2
2-1/2
*•Per•ASME•B16.5,•assumes•0.625"•raised•face•and•0.12”•gasket
1/2•-•13 2•3/4 4 5/8•-•11 3•1/4 4
1/2•-•13 3 4 3/4•-•10 3•1/2 4
2
5/8•-•11 3•1/4 4 5/8•-•11 3•1/2 8
5/8•-•11 3•1/2 4 3/4•-•10 4 8
3
5/8•-•11 3•1/2 4 3/4•-•10 4•1/4 8
4
5/8•-•11 3•3/4 8 3/4•-•10 4•1/2 8
5
3/4•-•10 3•3/4 8 3/4•-•10 4•3/4 8
6
3/4•-•10 4 8 3/4•-•10 4•3/4 12
8
3/4•-•10 4•1/4 8 7/8•-•9 5•1/2 12
10
7/8•-•9 4•1/2 12 1•-•8 6•1/2 16
12
7/8•-•9 4•3/4 12 1-1/8•-•8 6•3/4 16
14
16
18
1-1/8•-•8 6 16 1-1/4•-•8 8 24
20
1-1/8•-•8 6•1/2 20 1-1/4•-•8 8 24
24
1-1/4•-•8 7 20 1-1/2•-•8 9 24
150# 300#
Length
(inch)
1•-•8 5•1/4 12 1-1/8•-•8 7 20
1•-•8 5•1/4 16 1-1/4•-•8 7•1/2 20
Qty/
Sets
Diameter
(in-TPI)
Length
(inch)
L
F
H
Qty/
Sets
D
Notes:
1.• Diameters•(D)•up•to•and•including•1”•are•UNC,•Class•2A,•per•ASME•B1.1.
2.• Diameters•(D)•1-1/8”•and•larger•are•UN8,•Class•2A,•per•ASME•B1.1.
3.• Lengths•(L)•are•effective•thread•lengths,•excluding•end•points.••Overall•stud•bolt•
length•will•be•longer.
4.• Heavy•hex•nut•dimensions•are•nominal•per•ASME•B18.2.2.
DOC: FNWB712 Ver. 3/2012
©•2012•-•FNW.••All•rights•reserved.
The•FNW•logo•is•a•trademark•of•Ferguson•Enterprises,•Inc.,•PL•Sourcing,•PO•Box•2778,•Newport•News,•VA•23609
The•contents•of•this•publication•are•presented•for•information•purposes•only,•and•while•effort•has•been•made•to•ensure•their•accuracy,•they•are•not•to•be•construed•as•
warranties•or•guarantees,•expressed•or•implied,•regarding•the•products•or•services•described•herein•or•their•use•or•applicability.••All•sales•are•governed•by•our•terms•and•
conditions,•which•are•available•on•request.••We•reserve•the•right•to•modify•or•improve•the•designs•or•specications•of•our•products•at•any•time•without•notice.••Always•
verify•that•you•have•the•most•recent•product•specications•or•other•documentation•prior•to•the•installation•of•these•products.
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