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Fully Threaded Stud, B7 Alloy Steel, Grade B7, Finish PTFE (Fluoropolymer) Coated, Thread Size 7/8-9, Overall Length 5 In, Thread Type UNC, Thread Direction Right Hand, Class 2A, Min. Tensile Strength 125, 000 PSI, Temp. Range 1100 F, Rockwell Hardness C35, Meets/Exceeds ASTM A193, Includes (8) 2H Hex Nuts, Package Quantity 4
Double End Stud
Body Diameter | Nut Ends | |||||||||||
A | B | C | B | C | ||||||||
Thread Length For | Thread Length for Studs | |||||||||||
Type 2 | Type 3 | Studs <= 6" Length | > 6" Length | |||||||||
Nominal | Min Full | Max Total | Min Full | Max Total | ||||||||
Size | Max | Min | Max | Min | Thread | Thread | Thread | Thread | ||||
1/4 | 0.250 | 0.213 | 0.250 | 0.241 | 0.750 | 0.875 | 1.000 | 1.125 | ||||
5/16 | 0.313 | 0.271 | 0.313 | 0.303 | 0.875 | 1.031 | 1.125 | 1.281 | ||||
3/8 | 0.375 | 0.328 | 0.375 | 0.365 | 1.000 | 1.188 | 1.250 | 1.438 | ||||
7/16 | 0.438 | 0.385 | 0.438 | 0.426 | 1.125 | 1.344 | 1.375 | 1.594 | ||||
1/2 | 0.500 | 0.444 | 0.500 | 0.488 | 1.250 | 1.500 | 1.500 | 1.750 | ||||
9/16 | 0.563 | 0.502 | 0.563 | 0.550 | 1.375 | 1.656 | 1.625 | 1.906 | ||||
5/8 | 0.625 | 0.559 | 0.625 | 0.611 | 1.500 | 1.812 | 1.750 | 2.062 | ||||
3/4 | 0.750 | 0.677 | 0.750 | 0.735 | 1.750 | 2.125 | 2.000 | 2.375 | ||||
7/8 | 0.875 | 0.795 | 0.875 | 0.859 | 2.000 | 2.438 | 2.250 | 2.688 | ||||
1 | 1.000 | 0.910 | 1.000 | 0.983 | 2.250 | 2.750 | 2.500 | 3.000 | ||||
1 | 1/8 | 1.125 | 1.023 | 1.125 | 1.106 | 2.500 | 3.062 | 2.750 | 3.312 | |||
1 | 1/4 | 1.250 | 1.148 | 1.250 | 1.231 | 2.750 | 3.375 | 3.000 | 3.625 | |||
1 | 3/8 | 1.375 | 1.256 | 1.375 | 1.354 | 3.000 | 3.688 | 3.250 | 3.928 | |||
1 | 1/2 | 1.500 | 1.381 | 1.500 | 1.479 | 3.250 | 4.000 | 3.500 | 4.250 |
150 Flange
Length of Stud | ||||||||
Bolts [Note (1)] | ||||||||
Outside | ||||||||
Diameter | Diameter | Raised | ||||||
NPS | Diameter | of Bolt | of Bolt | Number | Diameter | Face | Ring | |
of Flange | Circle | Holes | of Bolts | of Bolts | 0.06 in | Joint | ||
1/2 | 3 1/2 | 2 3/8 | 5/8 | 4 | 1/2 | 2 1/4 | - | |
3/4 | 3 7/8 | 2 3/4 | 5/8 | 4 | 1/2 | 2 1/2 | - | |
1 | 4 1/4 | 3 1/8 | 5/8 | 4 | 1/2 | 2 1/2 | 3 | |
1 1/4 | 4 5/8 | 3 1/2 | 5/8 | 4 | 1/2 | 2 3/4 | 3 1/4 | |
1 1/2 | 5 | 3 7/8 | 5/8 | 4 | 1/2 | 2 3/4 | 3 1/4 | |
2 | 6 | 4 3/4 | 3/4 | 4 | 5/8 | 3 1/4 | 3 3/4 | |
2 1/2 | 7 | 5 1/2 | 3/4 | 4 | 5/8 | 3 1/2 | 4 | |
3 | 7 1/2 | 6 | 3/4 | 4 | 5/8 | 3 1/2 | 4 | |
3 1/2 | 8 1/2 | 7 | 3/4 | 8 | 5/8 | 3 1/2 | 4 | |
4 | 9 | 7 1/2 | 3/4 | 8 | 5/8 | 3 1/2 | 4 | |
5 | 10 | 8 1/2 | 7/8 | 8 | 3/4 | 3 3/4 | 4 1/4 | |
6 | 11 | 9 1/2 | 7/8 | 8 | 3/4 | 4 | 4 1/2 | |
8 | 13 1/2 | 11 | 3/4 | 7/8 | 8 | 3/4 | 4 1/4 | 4 3/4 |
10 | 16 | 14 | 3/4 | 1 | 12 | 7/8 | 4 1/2 | 5 |
12 | 19 | 17 | 1 | 12 | 7/8 | 4 3/4 | 5 1/4 | |
14 | 21 | 18 | 3/4 | 1 1/8 | 12 | 1 | 5 1/4 | 5 3/4 |
16 | 23 1/2 | 21 | 1/4 | 1 1/8 | 16 | 1 | 5 1/4 | 5 3/4 |
18 | 25 | 22 | 3/4 | 1 1/4 | 16 | 1 1/8 | 5 3/4 | 6 1/4 |
20 | 27 1/2 | 25 | 1 1/4 | 20 | 1 1/8 | 6 1/4 | 6 3/4 | |
24 | 32 | 29 | 1/2 | 1 1/4 | 20 | 1 1/4 | 6 3/4 | 7 1/4 |
300 Flange
Length of Stud | ||||||||||
Bolts [Note (1)] | ||||||||||
Outside | Diameter | Diameter | Raised | |||||||
Diameter | of Bolt | of Bolt | Number | Diameter | Face | Ring | ||||
NPS | of Flange | Circle | Holes | of Bolts | of Bolts | 0.06 in | Joint | |||
1/2 | 3 | 3/4 | 2 5/8 | 5/8 | 4 | 1/2 | 2 1/2 | 3 | ||
3/4 | 4 | 5/8 | 3 1/4 | 3/4 | 4 | 5/8 | 3 | 3 | 1/2 | |
1 | 4 | 7/8 | 3 1/2 | 3/4 | 4 | 5/8 | 3 | 3 | 1/2 | |
1 1/4 | 5 | 1/4 | 3 7/8 | 3/4 | 4 | 5/8 | 3 1/4 | 3 | 3/4 | |
1 1/2 | 6 | 1/8 | 4 | 1/2 | 7/8 | 4 | 3/4 | 3 1/2 | 4 | |
2 | 6 | 1/2 | 5 | 3/4 | 8 | 5/8 | 3 1/2 | 4 | ||
2 1/2 | 7 | 1/2 | 5 | 7/8 | 7/8 | 8 | 3/4 | 4 | 4 | 1/2 |
3 | 8 | 1/4 | 6 | 5/8 | 7/8 | 8 | 3/4 | 4 1/4 | 4 | 3/4 |
3 1/2 | 9 | 7 | 1/4 | 7/8 | 8 | 3/4 | 4 1/4 | 5 | ||
4 | 10 | 7 | 7/8 | 7/8 | 8 | 3/4 | 4 1/2 | 5 | ||
5 | 11 | 9 | 1/4 | 7/8 | 8 | 3/4 | 4 3/4 | 5 | 1/4 | |
6 | 12 1/2 | 10 | 5/8 | 7/8 | 12 | 3/4 | 4 3/4 | 5 | 1/2 | |
8 | 15 | 13 | 1 | 12 | 7/8 | 5 1/2 | 6 | |||
10 | 17 1/2 | 15 | 1/4 | 1 1/8 | 16 | 1 | 6 1/4 | 6 | 3/4 | |
12 | 20 1/2 | 17 | 3/4 | 1 1/4 | 16 | 1 1/8 | 6 3/4 | 7 | 1/4 | |
14 | 23 | 20 | 1/4 | 1 1/4 | 20 | 1 1/8 | 7 | 7 | 1/2 | |
16 | 25 1/2 | 22 | 1/2 | 1 3/8 | 20 | 1 1/4 | 7 1/2 | 8 | ||
18 | 28 | 24 | 3/4 | 1 3/8 | 24 | 1 1/4 | 7 3/4 | 8 | 1/4 | |
20 | 30 1/2 | 27 | 1 3/8 | 24 | 1 1/4 | 8 | 8 | 3/4 | ||
24 | 36 | 32 | 1 5/8 | 24 | 1 1/2 | 9 | 10 |
600 Flange
Length of Stud | |||||||||||
Bolts [Note (1)] | |||||||||||
Outside | Diameter | Diameter | Raised | ||||||||
Diameter | of Bolt | of Bolt | Number | Diameter | Face | Ring | |||||
NPS | of Flange | Circle | Holes | of Bolts | of Bolts | 0.06 in | Joint | ||||
1/2 | 3 | 3/4 | 2 | 5/8 | 5/8 | 4 | 1/2 | 3 | 3 | ||
3/4 | 4 | 5/8 | 3 | 1/4 | 3/4 | 4 | 5/8 | 3 | 1/2 | 3 | 1/2 |
1 | 4 | 7/8 | 3 | 1/2 | 3/4 | 4 | 5/8 | 3 | 1/2 | 3 | 1/2 |
1 1/4 | 5 | 1/4 | 3 | 7/8 | 3/4 | 4 | 5/8 | 3 | 3/4 | 3 | 3/4 |
1 1/2 | 6 | 1/8 | 4 | 1/2 | 7/8 | 4 | 3/4 | 4 | 1/4 | 4 | 1/4 |
2 | 6 | 1/2 | 5 | 3/4 | 8 | 5/8 | 4 | 1/4 | 4 | 1/4 | |
2 1/2 | 7 | 1/2 | 5 | 7/8 | 7/8 | 8 | 3/4 | 4 | 3/4 | 4 | 3/4 |
3 | 8 | 1/4 | 6 5/8 | 7/8 | 8 | 3/4 | 5 | 5 | |||
3 1/2 | 9 | 7 | 1/4 | 1 | 8 | 7/8 | 5 | 1/2 | 5 1/2 | ||
4 | 10 | 3/4 | 8 | 1/2 | 1 | 8 | 7/8 | 5 | 3/4 | 5 3/4 | |
5 | 13 | 10 | 1/2 | 1 1/8 | 8 | 1 | 6 | 1/2 | 6 1/2 | ||
6 | 14 | 11 | 1/2 | 1 1/8 | 12 | 1 | 6 | 3/4 | 6 3/4 | ||
8 | 16 | 1/2 | 13 | 3/4 | 1 1/4 | 12 | 1 1/8 | 7 | 1/2 | 7 3/4 | |
10 | 20 | 17 | 1 3/8 | 16 | 1 1/4 | 8 | 1/2 | 8 1/2 | |||
12 | 22 | 19 | 1/4 | 1 3/8 | 20 | 1 1/4 | 8 | 3/4 | 8 3/4 | ||
14 | 23 | 3/4 | 20 | 3/4 | 1 1/2 | 20 | 1 3/8 | 9 | 1/4 | 9 1/4 | |
16 | 27 | 23 | 3/4 | 1 5/8 | 20 | 1 1/2 | 10 | 10 | |||
18 | 29 | 1/4 | 25 | 3/4 | 1 3/4 | 20 | 1 5/8 | 10 | 3/4 | 10 | 3/4 |
20 | 32 | 28 | 1/2 | 1 3/4 | 24 | 1 5/8 | 11 | 1/4 | 11 | 1/2 | |
24 | 37 | 33 | 2 | 24 | 1 7/8 | 13 | 13 | 1/4 |
900 Flange
Length of Stud | |||||||||
Bolts [Note (1)] | |||||||||
Outside | Diameter | Diameter | Raised | ||||||
Diameter | of Bolt | of Bolt | Number | Diameter | Face | Ring | |||
NPS | of Flange | Circle | Holes | of Bolts | of Bolts | 0.06 in | Joint | ||
1/2 | 4 | 3/4 | 3 | 1/4 | 7/8 | 4 | 3/4 | 4 1/4 | 4 1/4 |
3/4 | 5 | 1/8 | 3 | 1/2 | 7/8 | 4 | 3/4 | 4 1/2 | 4 1/2 |
1 | 5 | 7/8 | 4 | 1 | 4 | 7/8 | 5 | 5 | |
1 1/4 | 6 | 1/4 | 4 | 3/8 | 1 | 4 | 7/8 | 5 | 5 |
1 1/2 | 7 | 4 | 7/8 | 1 1/8 | 4 | 1 | 5 1/2 | 5 1/2 | |
2 | 8 | 1/2 | 6 | 1/2 | 1 | 8 | 7/8 | 5 3/4 | 5 3/4 |
2 1/2 | 9 | 5/8 | 7 | 1/2 | 1 1/8 | 8 | 1 | 6 1/4 | 6 1/4 |
3 | 9 | 1/2 | 7 | 1/2 | 1 | 8 | 7/8 | 5 3/4 | 5 3/4 |
4 | 11 | 1/2 | 9 | 1/4 | 1 1/4 | 8 | 1 1/8 | 6 3/4 | 6 3/4 |
5 | 13 | 3/4 | 11 | 1 3/8 | 8 | 1 1/4 | 7 1/2 | 7 1/2 | |
6 | 15 | 12 | 1/2 | 1 1/4 | 12 | 1 1/8 | 7 1/2 | 7 3/4 | |
8 | 18 | 1/2 | 15 | 1/2 | 1 1/2 | 12 | 1 3/8 | 8 3/8 | 8 3/4 |
10 | 21 | 1/2 | 18 | 1/2 | 1 1/2 | 16 | 1 3/8 | 9 1/4 | 9 1/4 |
12 | 24 | 21 | 1 1/2 | 20 | 1 3/8 | 10 | 10 | ||
14 | 25 | 1/4 | 22 | 1 5/8 | 20 | 1 1/2 | 10 3/4 | 11 | |
16 | 27 | 3/4 | 24 | 1/4 | 1 3/4 | 20 | 1 5/8 | 11 1/4 | 11 1/2 |
18 | 31 | 27 | 2 | 20 | 1 7/8 | 12 3/4 | 13 1/4 | ||
20 | 33 | 3/4 | 29 | 1/2 | 2 1/8 | 20 | 2 | 13 3/4 | 14 1/4 |
24 | 41 | 35 | 1/2 | 2 5/8 | 20 | 2 1/2 | 17 1/4 | 18 |
1500 Flange
Length of Stud | |||||||||||
Bolts [Note (1)] | |||||||||||
Outside | Diameter | Diameter | Raised | ||||||||
Diameter | of Bolt | of Bolt | Number | Diameter | Face | Ring | |||||
NPS | of Flange | Circle | Holes | of Bolts | of Bolts | 0.06 in | Joint | ||||
1/2 | 4 | 3/4 | 3 | 1/4 | 7/8 | 4 | 3/4 | 4 | 1/4 | 4 | 1/4 |
3/4 | 5 | 1/8 | 3 | 1/2 | 7/8 | 4 | 3/4 | 4 | 1/2 | 4 | 1/2 |
1 | 5 | 7/8 | 4 | 1 | 4 | 7/8 | 5 | 5 | |||
1 1/4 | 6 | 1/4 | 4 | 3/8 | 1 | 4 | 7/8 | 5 | 5 | ||
1 1/2 | 7 | 4 | 7/8 | 1 1/8 | 4 | 1 | 5 | 1/2 | 5 | 1/2 | |
2 | 8 | 1/2 | 6 | 1/2 | 1 | 8 | 7/8 | 5 | 3/4 | 5 | 3/4 |
2 1/2 | 9 | 5/8 | 7 | 1/2 | 1 1/8 | 8 | 1 | 6 | 1/4 | 6 | 1/4 |
3 | 10 | 1/2 | 8 | 1 1/4 | 8 | 1 1/8 | 7 | 7 | |||
4 | 12 | 1/4 | 9 | 1/2 | 1 3/8 | 8 | 1 1/4 | 7 | 3/4 | 7 | 3/4 |
5 | 14 | 3/4 | 11 | 1/2 | 1 5/8 | 8 | 1 1/2 | 9 | 3/4 | 9 | 3/4 |
6 | 15 | 1/2 | 12 | 1/2 | 1 1/2 | 12 | 1 3/8 | 10 | 1/4 | 10 | 1/2 |
8 | 19 | 15 | 1/2 | 1 3/4 | 12 | 1 5/8 | 11 | 1/2 | 12 | 3/4 | |
10 | 23 | 19 | 2 | 12 | 1 7/8 | 13 | 1/4 | 13 | 1/2 | ||
12 | 26 | 1/2 | 22 | 1/2 | 2 1/8 | 16 | 2 | 14 | 3/4 | 15 | 1/4 |
14 | 29 | 1/2 | 25 | 2 3/8 | 16 | 2 1/4 | 16 | 16 | 3/4 | ||
16 | 32 | 1/2 | 27 | 3/4 | 2 5/8 | 16 | 2 1/2 | 17 | 1/2 | 18 | 1/2 |
18 | 36 | 30 | 1/2 | 2 7/8 | 16 | 2 3/4 | 19 | 1/2 | 20 | 3/4 | |
20 | 38 | 3/4 | 32 | 3/4 | 3 1/8 | 16 | 3 | 21 | 1/4 | 22 | 1/4 |
24 | 46 | 39 | 3 5/8 | 16 | 3 1/2 | 24 | 1/4 | 25 | 1/2 |
Note: (1) All studs are measured using effective thread length which is first thread to first thread. See diagrams to the right.
Dimensions are in inches. Measurements based on ASME B 16.5 flange specifications.
Note: (2) Length of point on studs and stud bolts shall be not less than one nor more than two complete threads as measured from the extreme end parallel to the axis. (Typically 1/8”)
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