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A320 B8 Stud Bolt

ASTM A320 Grade B8 studs are manufactured from AISI 304 stainless steel, and tested to meet A320. Dimensional specifications are governed by ASME B18.31.2. Grade markings consists of both the grade symbol "B8" and the manufacturer's identification mark on one end of each stud 3/8" diameter and larger. Manufacturer's marking may be placed on other end if insufficient space. A320 grade B8 all thread studs having diameters above 1" are most common 8UN (8 threads per inch). For use in pressure vessels, valves, flanges, and fittings for low temperature service. A193 grade B8 studs available for high temperature or high pressure service.

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Stud Flange Chart

Stud Flange Chart

Stud Flange ChartsASME B16.5

FLANGE		NOMINAL PIPE DIAMETER
CLASS	BOLTING	1/2	3/4	1	1-1/4	1-1/2	2	2-1/2	3	3-1/2	4
150#	Number	4	4	4	4	4	4	4	4	8	8
	Diameter	1/2	1/2	1/2	1/2	1/2	5/8	5/8	5/8	5/8	5/8
	Stud Bolt Length	2-1/4	2-1/2	2-1/2	2-3/4	2-3/4	3-1/4	3-1/2	3-1/2	3-1/2	3-1/2
	Mach Bolt Length	2	2	2-1/4	2-1/4	2-1/2	2-3/4	3	3	3	3
300#	Number	4	4	4	4	4	8	8	8	8	8
	Diameter	1/2	5/8	5/8	5/8	3/4	5/8	3/4	3/4	3/4	3/4
	Stud Bolt Length	2-1/2	3	3	3-1/4	3-1/2	3-1/2	4	4-1/4	4-1/4	4-1/2
	Mach Bolt Length	2-1/4	2-1/2	2-1/2	2-3/4	3	3	3-1/4	3-1/2	3-3/4	3-3/4
600#	Number	4	4	4	4	4	8	8	8	8	8
	Diameter	1/2	5/8	5/8	5/8	3/4	5/8	3/4	3/4	7/8	7/8
	Stud Bolt Length	3	3-1/2	3-1/2	3-3/4	4-1/4	4-1/4	4-3/4	5	5-1/2	5-3/4
900#	Number	4	4	4	4	4	8	8	8	-	8
	Diameter	3/4	3/4	7/8	7/8	1	7/8	1	7/8	-	1-1/8
	Stud Bolt Length	4-1/4	4-1/2	5	5	5-1/2	5-3/4	6-1/4	5-3/4	-	6-3/4
1500#	Number	4	4	4	4	4	8	8	8	-	8
	Diameter	3/4	3/4	7/8	7/8	1	7/8	1	1-1/8	-	1-1/4
	Stud Bolt Length	4-1/4	4-1/2	5	5	5-1/2	5-3/4	6-1/4	7	-	7-3/4
2500#	Number	4	4	4	4	4	8	8	8	-	8
	Diameter	3/4	3/4	7/8	1	1-1/8	1	1-1/8	1-1/4	-	1-1/2
	Stud Bolt Length	4-3/4	5	5-1/2	6	6-3/4	7	7-3/4	8-3/4	-	10
FLANGE		NOMINAL PIPE DIAMETER
CLASS	BOLTING	5	6	8	10	12	14	16	18	20	24
150#	Number	8	8	8	12	12	12	16	16	20	20
	Diameter	3/4	3/4	3/4	7/8	7/8	1	1	1-1/8	1-1/8	1-1/4
	Stud Bolt Length	3-3/4	4	4-1/4	4-1/2	4-3/4	5-1/4	5-1/4	5-3/4	6-1/4	6-3/4
	Mach Bolt Length	3-1/4	3-1/4	3-1/2	4	4	4-1/2	4-1/2	5	5-1/2	6
300#	Number	8	12	12	16	16	20	20	24	24	24
	Diameter	3/4	3/4	7/8	1	1-1/8	1-1/8	1-1/4	1-1/4	1-1/4	1-1/2
	Stud Bolt Length	4-3/4	4-3/4	5-1/2	6-1/4	6-3/4	7	7-1/2	7-3/4	8	9
	Mach Bolt Length	4-1/4	4-1/4	4-3/4	5-1/2	5-3/4	6-1/4	6-1/2	6-3/4	7-1/4	8
600#	Number	8	12	12	16	20	20	20	20	24	24
	Diameter	1	1	1-1/8	1-1/4	1-1/4	1-3/8	1-1/2	1-5/8	1-5/8	1-7/8
	Stud Bolt Length	6-1/2	6-3/4	7-1/2	8-1/2	8-3/4	9-1/4	10	10-3/4	11-1/4	13
900#	Number	8	12	12	16	20	20	20	20	20	20
	Diameter	1-1/4	1-1/8	1-3/8	1-3/8	1-3/8	1-1/2	1-5/8	1-7/8	2	2-1/2
	Stud Bolt Length	7-1/2	7-1/2	8-3/4	9-1/4	10	10-3/4	11-1/4	12-3/4	13-3/4	17-1/4
1500#	Number	8	12	12	12	16	16	16	16	16	16
	Diameter	1-1/2	1-3/8	1-5/8	1-7/8	2	2-1/4	2-1/2	2-3/4	3	3-1/2
	Stud Bolt Length	9-3/4	10-1/4	11-1/2	13-1/4	14-3/4	16	17-1/2	19-1/2	21-1/4	24-1/4
2500#	Number	8	8	12	12	12	-	-	-	-	-
	Diameter	1-3/4	2	2	2-1/2	2-3/4	-	-	-	-	-
	Stud Bolt Length	11-3/4	13-1/2	15	19-1/4	21-1/4	-	-	-	-	-

All dimensions are in inches.

A320 B8 Stud Bolt

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Diameter Thread Pitch Length 1st Thrd To 1st Thrd Item # Availability Price Quantity UOM

1/2

1 3/4

SBB80500200A3-I

3-5 Working Days

$1.43121/EA

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1/2-13 X 2 A320 B8 STAINLESS STEEL STUD BOLT

$1.43121/EA

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3-5 Working Days

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Quantity	Price
Quantity	Price
1	$1.43121/EA
120	$1.36395/EA
450	$1.16415/EA
2010	$0.98453/EA

1/2

2 1/4

SBB80500225A3-I

3-5 Working Days

$1.44361/EA

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1/2-13 X 2 1/4 A320 B8 STAINLESS STEEL STUD BOLT

$1.44361/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.44361/EA
100	$1.37576/EA
400	$1.17423/EA
1790	$0.99306/EA

1/2

2 1/2

2 1/4

SBB80500250A3-I

3-5 Working Days

$1.45911/EA

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1/2-13 X 2 1/2 A320 B8 STAINLESS STEEL STUD BOLT

$1.45911/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.45911/EA
90	$1.39053/EA
360	$1.18684/EA
1610	$1.00372/EA

1/2

2 3/4

2 1/2

SBB80500275A3-I

3-5 Working Days

$1.47278/EA

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1/2-13 X 2 3/4 A320 B8 STAINLESS STEEL STUD BOLT

$1.47278/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.47278/EA
90	$1.40356/EA
330	$1.19796/EA
1460	$1.01312/EA

1/2

2 3/4

SBB80500300A3-I

3-5 Working Days

$1.48581/EA

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1/2-13 X 3 A320 B8 STAINLESS STEEL STUD BOLT

$1.48581/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.48581/EA
80	$1.41598/EA
300	$1.20856/EA
1340	$1.02209/EA

1/2

3 1/4

SBB80500325A3-I

3-5 Working Days

$1.50127/EA

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1/2-13 X 3 1/4 A320 B8 STAINLESS STEEL STUD BOLT

$1.50127/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.50127/EA
70	$1.43071/EA
280	$1.22113/EA
1240	$1.03272/EA

1/2

3 1/2

3 1/4

SBB80500350A3-I

3-5 Working Days

$1.51489/EA

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1/2-13 X 3 1/2 A320 B8 STAINLESS STEEL STUD BOLT

$1.51489/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.51489/EA
70	$1.44369/EA
260	$1.23221/EA
1150	$1.04209/EA

1/2

3 3/4

3 1/2

SBB80500375A3-I

3-5 Working Days

$1.52516/EA

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1/2-13 X 3 3/4 A320 B8 STAINLESS STEEL STUD BOLT

$1.52516/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.52516/EA
60	$1.45348/EA
240	$1.24057/EA
1070	$1.04916/EA

1/2

3 3/4

SBB80500400A3-I

3-5 Working Days

$1.54278/EA

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1/2-13 X 4 A320 B8 STAINLESS STEEL STUD BOLT

$1.54278/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.54278/EA
60	$1.47027/EA
230	$1.2549/EA
1010	$1.06128/EA

1/2

4 1/4

SBB80500425A3-I

3-5 Working Days

$1.5563/EA

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1/2-13 X 4 1/4 A320 B8 STAINLESS STEEL STUD BOLT

$1.5563/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.5563/EA
60	$1.48315/EA
210	$1.26589/EA
950	$1.07058/EA

1/2

4 1/2

4 1/4

SBB80500450A3-I

3-5 Working Days

$1.57157/EA

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1/2-13 X 4 1/2 A320 B8 STAINLESS STEEL STUD BOLT

$1.57157/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.57157/EA
50	$1.4977/EA
200	$1.27831/EA
900	$1.08108/EA

1/2

4 3/4

4 1/2

SBB80500475A3-I

3-5 Working Days

$1.57997/EA

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1/2-13 X 4 3/4 A320 B8 STAINLESS STEEL STUD BOLT

$1.57997/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.57997/EA
50	$1.50571/EA
190	$1.28514/EA
850	$1.08686/EA

1/2

4 3/4

SBB80500500A3-I

3-5 Working Days

$1.59856/EA

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1/2-13 X 5 A320 B8 STAINLESS STEEL STUD BOLT

$1.59856/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.59856/EA
50	$1.52343/EA
180	$1.30027/EA
810	$1.09965/EA

1/2

5 1/4

SBB80500525A3-I

3-5 Working Days

$1.60889/EA

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1/2-13 X 5 1/4 A320 B8 STAINLESS STEEL STUD BOLT

$1.60889/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.60889/EA
50	$1.53327/EA
170	$1.30867/EA
770	$1.10675/EA

1/2

5 1/2

5 1/4

SBB80500550A3-I

3-5 Working Days

$1.62001/EA

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1/2-13 X 5 1/2 A320 B8 STAINLESS STEEL STUD BOLT

$1.62001/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.62001/EA
50	$1.54387/EA
170	$1.31772/EA
730	$1.11441/EA

1/2

5 3/4

5 1/2

SBB80500575A3-I

3-5 Working Days

$1.64504/EA

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1/2-13 X 5 3/4 A320 B8 STAINLESS STEEL STUD BOLT

$1.64504/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.64504/EA
40	$1.56773/EA
160	$1.33808/EA
700	$1.13163/EA

1/2

5 3/4

SBB80500600A3-I

3-5 Working Days

$1.65919/EA

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1/2-13 X 6 A320 B8 STAINLESS STEEL STUD BOLT

$1.65919/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.65919/EA
40	$1.58121/EA
150	$1.34959/EA
670	$1.14136/EA

1/2

6 1/4

SBB80500625A3-I

3-5 Working Days

$1.67463/EA

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1/2-13 X 6 1/4 A320 B8 STAINLESS STEEL STUD BOLT

$1.67463/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.67463/EA
40	$1.59592/EA
150	$1.36214/EA
650	$1.15197/EA

1/2

6 1/2

6 1/4

SBB80500650A3-I

3-5 Working Days

$1.67463/EA

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1/2-13 X 6 1/2 A320 B8 STAINLESS STEEL STUD BOLT

$1.67463/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.67463/EA
40	$1.59592/EA
140	$1.36214/EA
620	$1.15197/EA

1/2

6 3/4

6 1/2

SBB80500675A3-I

3-5 Working Days

$1.69153/EA

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1/2-13 X 6 3/4 A320 B8 STAINLESS STEEL STUD BOLT

$1.69153/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.69153/EA
40	$1.61203/EA
140	$1.37589/EA
600	$1.1636/EA

1/2

6 3/4

SBB80500700A3-I

3-5 Working Days

$1.71012/EA

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1/2-13 X 7 A320 B8 STAINLESS STEEL STUD BOLT

$1.71012/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.71012/EA
40	$1.62975/EA
130	$1.39101/EA
580	$1.17639/EA

1/2

7 1/4

SBB80500725A3-I

3-5 Working Days

$1.73067/EA

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1/2-13 X 7 1/4 A320 B8 STAINLESS STEEL STUD BOLT

$1.73067/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.73067/EA
40	$1.64933/EA
130	$1.40773/EA
560	$1.19053/EA

1/2

7 1/2

7 1/4

SBB80500750A3-I

3-5 Working Days

$1.73067/EA

See Quantity Discounts

1/2-13 X 7 1/2 A320 B8 STAINLESS STEEL STUD BOLT

$1.73067/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.73067/EA
30	$1.64933/EA
120	$1.40773/EA
540	$1.19053/EA

1/2

7 3/4

7 1/2

SBB80500775A3-I

3-5 Working Days

$1.75351/EA

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1/2-13 X 7 3/4 A320 B8 STAINLESS STEEL STUD BOLT

$1.75351/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.75351/EA
30	$1.67109/EA
120	$1.4263/EA
520	$1.20624/EA

1/2

7 3/4

SBB80500800A3-I

3-5 Working Days

$1.77903/EA

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1/2-13 X 8 A320 B8 STAINLESS STEEL STUD BOLT

$1.77903/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.77903/EA
30	$1.69541/EA
120	$1.44706/EA
510	$1.22379/EA

1/2

8 1/2

8 1/4

SBB80500850A3-I

3-5 Working Days

$1.80774/EA

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1/2-13 X 8 1/2 A320 B8 STAINLESS STEEL STUD BOLT

$1.80774/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.80774/EA
30	$1.72278/EA
110	$1.47042/EA
500	$1.24354/EA

1/2

8 3/4

SBB80500900A3-I

3-5 Working Days

$1.84028/EA

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1/2-13 X 9 A320 B8 STAINLESS STEEL STUD BOLT

$1.84028/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.84028/EA
25	$1.75379/EA
100	$1.49688/EA
500	$1.26593/EA

1/2

9 1/2

9 1/4

SBB80500950A3-I

3-5 Working Days

$1.84028/EA

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1/2-13 X 9 1/2 A320 B8 STAINLESS STEEL STUD BOLT

$1.84028/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.84028/EA
25	$1.75379/EA
100	$1.49688/EA
500	$1.26593/EA

1/2

9 3/4

SBB80501000A3-I

3-5 Working Days

$1.87747/EA

See Quantity Discounts

1/2-13 X 10 A320 B8 STAINLESS STEEL STUD BOLT

$1.87747/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.87747/EA
25	$1.78923/EA
90	$1.52713/EA
500	$1.29151/EA

1/2

10 1/2

10 1/4

SBB80501050A3-I

3-5 Working Days

$1.92038/EA

See Quantity Discounts

1/2-13 X 10 1/2 A320 B8 STAINLESS STEEL STUD BOLT

$1.92038/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.92038/EA
25	$1.83012/EA
90	$1.56203/EA
500	$1.32103/EA

1/2

10 3/4

SBB80501100A3-I

3-5 Working Days

$1.92038/EA

See Quantity Discounts

1/2-13 X 11 A320 B8 STAINLESS STEEL STUD BOLT

$1.92038/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.92038/EA
25	$1.83012/EA
90	$1.56203/EA
500	$1.32103/EA

1/2

11 1/2

11 1/4

SBB80501150A3-I

3-5 Working Days

$1.97044/EA

See Quantity Discounts

1/2-13 X 11 1/2 A320 B8 STAINLESS STEEL STUD BOLT

$1.97044/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.97044/EA
25	$1.87783/EA
80	$1.60275/EA
500	$1.35546/EA

1/2

11 3/4

SBB80501200A3-I

3-5 Working Days

$1.97044/EA

See Quantity Discounts

1/2-13 X 12 A320 B8 STAINLESS STEEL STUD BOLT

$1.97044/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.97044/EA
25	$1.87783/EA
80	$1.60275/EA
500	$1.35546/EA

1/2

12 3/4

SBB80501300A3-I

3-5 Working Days

$2.0296/EA

See Quantity Discounts

1/2-13 X 13 A320 B8 STAINLESS STEEL STUD BOLT

$2.0296/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$2.0296/EA
25	$1.93421/EA
70	$1.65088/EA
500	$1.39616/EA

1/2

13 3/4

SBB80501400A3-I

3-5 Working Days

$2.10059/EA

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1/2-13 X 14 A320 B8 STAINLESS STEEL STUD BOLT

$2.10059/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$2.10059/EA
25	$2.00186/EA
70	$1.70862/EA
500	$1.445/EA

1/2

14 3/4

SBB80501500A3-I

3-5 Working Days

$2.18736/EA

See Quantity Discounts

1/2-13 X 15 A320 B8 STAINLESS STEEL STUD BOLT

$2.18736/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$2.18736/EA
25	$2.08456/EA
60	$1.7792/EA
500	$1.50469/EA

1/2

15 3/4

SBB80501600A3-I

3-5 Working Days

$2.18736/EA

See Quantity Discounts

1/2-13 X 16 A320 B8 STAINLESS STEEL STUD BOLT

$2.18736/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$2.18736/EA
25	$2.08456/EA
60	$1.7792/EA
500	$1.50469/EA

1/2

16 3/4

SBB80501700A3-I

3-5 Working Days

$2.29583/EA

See Quantity Discounts

1/2-13 X 17 A320 B8 STAINLESS STEEL STUD BOLT

$2.29583/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$2.29583/EA
25	$2.18792/EA
60	$1.86743/EA
500	$1.5793/EA

1/2

17 3/4

SBB80501800A3-I

3-5 Working Days

$2.29583/EA

See Quantity Discounts

1/2-13 X 18 A320 B8 STAINLESS STEEL STUD BOLT

$2.29583/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$2.29583/EA
25	$2.18792/EA
50	$1.86743/EA
500	$1.5793/EA

5/8

2 1/2

2 1/4

SBB80620250A3-I

3-5 Working Days

$3.2026/EA

See Quantity Discounts

5/8-11 X 2 1/2 A320 B8 STAINLESS STEEL STUD BOLT

$3.2026/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$3.2026/EA
60	$3.05208/EA
230	$2.60499/EA
1020	$2.20307/EA

5/8

2 3/4

2 1/2

SBB80620275A3-I

3-5 Working Days

$3.37762/EA

See Quantity Discounts

5/8-11 X 2 3/4 A320 B8 STAINLESS STEEL STUD BOLT

$3.37762/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$3.37762/EA
60	$3.21887/EA
210	$2.74736/EA
930	$2.32346/EA

5/8

2 3/4

SBB80620300A3-I

3-5 Working Days

$3.54445/EA

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5/8-11 X 3 A320 B8 STAINLESS STEEL STUD BOLT

$3.54445/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$3.54445/EA
50	$3.37786/EA
190	$2.88305/EA
850	$2.43822/EA

5/8

3 1/4

SBB80620325A3-I

3-5 Working Days

$3.74231/EA

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5/8-11 X 3 1/4 A320 B8 STAINLESS STEEL STUD BOLT

$3.74231/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$3.74231/EA
50	$3.56642/EA
180	$3.044/EA
780	$2.57434/EA

5/8

3 1/2

3 1/4

SBB80620350A3-I

3-5 Working Days

$3.91668/EA

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5/8-11 X 3 1/2 A320 B8 STAINLESS STEEL STUD BOLT

$3.91668/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$3.91668/EA
50	$3.73259/EA
170	$3.18583/EA
730	$2.69428/EA

5/8

3 3/4

3 1/2

SBB80620375A3-I

3-5 Working Days

$4.04822/EA

See Quantity Discounts

5/8-11 X 3 3/4 A320 B8 STAINLESS STEEL STUD BOLT

$4.04822/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$4.04822/EA
40	$3.85795/EA
160	$3.29282/EA
680	$2.78477/EA

5/8

3 3/4

SBB80620400A3-I

3-5 Working Days

$4.27372/EA

See Quantity Discounts

5/8-11 X 4 A320 B8 STAINLESS STEEL STUD BOLT

$4.27372/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$4.27372/EA
40	$4.07285/EA
150	$3.47624/EA
640	$2.93989/EA

5/8

4 1/4

SBB80620425A3-I

3-5 Working Days

$4.44683/EA

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5/8-11 X 4 1/4 A320 B8 STAINLESS STEEL STUD BOLT

$4.44683/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$4.44683/EA
40	$4.23783/EA
140	$3.61705/EA
600	$3.05897/EA

5/8

4 1/2

4 1/4

SBB80620450A3-I

In Stock

$4.64227/EA

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5/8-11 X 4 1/2 A320 B8 STAINLESS STEEL STUD BOLT

$4.64227/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$4.64227/EA
40	$4.42409/EA
130	$3.77603/EA
570	$3.19342/EA

5/8

4 3/4

4 1/2

SBB80620475A3-I

3-5 Working Days

$4.74977/EA

See Quantity Discounts

5/8-11 X 4 3/4 A320 B8 STAINLESS STEEL STUD BOLT

$4.74977/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$4.74977/EA
30	$4.52653/EA
120	$3.86346/EA
540	$3.26737/EA

5/8

4 3/4

SBB80620500A3-I

3-5 Working Days

$4.9878/EA

See Quantity Discounts

5/8-11 X 5 A320 B8 STAINLESS STEEL STUD BOLT

$4.9878/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$4.9878/EA
30	$4.75337/EA
120	$4.05707/EA
510	$3.4311/EA

5/8

5 1/4

SBB80620525A3-I

3-5 Working Days

$5.12003/EA

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5/8-11 X 5 1/4 A320 B8 STAINLESS STEEL STUD BOLT

$5.12003/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$5.12003/EA
30	$4.87939/EA
110	$4.16463/EA
500	$3.52207/EA

5/8

5 1/2

5 1/4

SBB80620550A3-I

3-5 Working Days

$5.26244/EA

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5/8-11 X 5 1/2 A320 B8 STAINLESS STEEL STUD BOLT

$5.26244/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$5.26244/EA
30	$5.01511/EA
110	$4.28047/EA
500	$3.62003/EA

5/8

5 3/4

5 1/2

SBB80620575A3-I

3-5 Working Days

$5.58286/EA

See Quantity Discounts

ASTM A320	Covers alloy steel bolting materials and bolting components for pressure vessels, valves, flanges, and fittings for low-temperature service.
ASME B18.31.2	Covers the complete dimensional and general data for continuous thread, flange studs (stud bolts), and double-end inch-dimensioned studs.
ASME B1.1 UNC & UNF Class 2A	Specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads.

AISI 304 Stainless Steel, Carbide Solution Treated			Per ASTM A320/A320M-15a
Material	Tensile Strength	Yield Strength, 0.2% offset	Elongation in 4D	Reduction of Area	Hardness
Material	Min ksi	Min ksi	Min %	Min %	Max
304 Stainless Steel	75	30	30	50	223 HBW or 96 HRB (1)

Per ASTM A320/A320M-15a
Grade	Material	Carbon	Manganese	Phosphorus	Sulfur	Silicon	Chromium	Nickel
Grade	Material	% by weight	% by weight	% by weight	% by weight	% by weight	% by weight	% by weight
B8	304 Stainless Steel	0.08 max	2.00 max	0.045 max	0.030 max	1.00 max	18.0-20.0	8.0-11.0

A320 B8 Stud Bolt

A320 B8 Stud Bolt

Technical Data

Governing Standards

Governing StandardsGrade B8 Stainless Steel

Mechanical Properties

Mechanical PropertiesGrade B8 Stainless Steel

Chemical Properties

Chemical PropertiesGrade B8 Stainless Steel

Stud Flange Chart

Stud Flange ChartsASME B16.5

Diameter

Thread Pitch

Length

Thread Type

1/2-13 X 2 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 2 1/4 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 2 1/2 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 2 3/4 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 3 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 3 1/4 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 3 1/2 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 3 3/4 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 4 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 4 1/4 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 4 1/2 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 4 3/4 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 5 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 5 1/4 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 5 1/2 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 5 3/4 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 6 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 6 1/4 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 6 1/2 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 6 3/4 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 7 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 7 1/4 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 7 1/2 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 7 3/4 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 8 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 8 1/2 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 9 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 9 1/2 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 10 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 10 1/2 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 11 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 11 1/2 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 12 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 13 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 14 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 15 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 16 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 17 A320 B8 STAINLESS STEEL STUD BOLT

1/2-13 X 18 A320 B8 STAINLESS STEEL STUD BOLT

5/8-11 X 2 1/2 A320 B8 STAINLESS STEEL STUD BOLT

5/8-11 X 2 3/4 A320 B8 STAINLESS STEEL STUD BOLT

5/8-11 X 3 A320 B8 STAINLESS STEEL STUD BOLT

5/8-11 X 3 1/4 A320 B8 STAINLESS STEEL STUD BOLT

5/8-11 X 3 1/2 A320 B8 STAINLESS STEEL STUD BOLT

5/8-11 X 3 3/4 A320 B8 STAINLESS STEEL STUD BOLT

5/8-11 X 4 A320 B8 STAINLESS STEEL STUD BOLT

5/8-11 X 4 1/4 A320 B8 STAINLESS STEEL STUD BOLT

5/8-11 X 4 1/2 A320 B8 STAINLESS STEEL STUD BOLT

5/8-11 X 4 3/4 A320 B8 STAINLESS STEEL STUD BOLT

5/8-11 X 5 A320 B8 STAINLESS STEEL STUD BOLT

5/8-11 X 5 1/4 A320 B8 STAINLESS STEEL STUD BOLT

5/8-11 X 5 1/2 A320 B8 STAINLESS STEEL STUD BOLT