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316 SS Hex Cap Screw

316 Stainless Steel hex head cap screws are manufactured from 316 stainless steel, an austenitic alloy which differs from 18-8 by its molybdenum content (2-3%) and a higher nickel content (10-14%). Dimensional specifications are governed by ASME B18.2.1. 316 stainless steel fasteners are commonly used in applications that require general atmospheric corrosion resistance, such as chemical and food processing equipment. 316 stainless steel has a higher corrosion resistance than 18-8 or 304 stainless steel.

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Governing Standards
Dimensional Specifications

Dimensional Specifications

Dimensional Specifications316 Stainless Steel

Per ASME B18.2.1-2012
Nominal Diameter		UNC	UNF	E		F			G		H			J	LT		Y
				Body Diameter		Width Across Flats			Width Across Corners		Head Height			Wrench Height	Thread Length		Transition Length
				Max	Min	Basic	Max	Min	Max	Min	Basic	Max	Min	Min	Lengths up to 6"	Lengths > 6"	Max
1/4	0.2500	20	28	0.2500	0.2405	7/16	0.4380	0.4280	0.5050	0.4880	5/32	0.1630	0.1500	0.1060	0.7500	1.0000	0.2500
5/16	0.3125	18	24	0.3125	0.3065	1/2	0.5000	0.4890	0.5770	0.5570	13/64	0.2110	0.1950	0.1400	0.8750	1.1250	0.2750
3/8	0.3750	16	24	0.3750	0.3690	9/16	0.5620	0.5510	0.6500	0.6280	15/64	0.2430	0.2260	0.1600	1.0000	1.2500	0.3120
7/16	0.4375	14	20	0.4375	0.4305	5/8	0.6250	0.6120	0.7220	0.6980	9/32	0.2910	0.2720	0.1950	1.1250	1.3750	0.3570
1/2	0.5000	13	20	0.5000	0.4930	3/4	0.7500	0.7360	0.8660	0.8400	5/16	0.3230	0.3020	0.2150	1.2500	1.5000	0.3850
9/16	0.5625	12	18	0.5625	0.5545	13/16	0.8120	0.7980	0.9380	0.9100	23/64	0.3710	0.3480	0.2500	1.3750	1.6250	0.4170
5/8	0.6250	11	18	0.6250	0.6170	15/16	0.9380	0.9220	1.0830	1.0510	25/64	0.4030	0.3780	0.2690	1.5000	1.7500	0.4550
3/4	0.7500	10	16	0.7500	0.7410	1 1/8	1.1250	1.1000	1.2990	1.2540	15/32	0.4830	0.4550	0.3240	1.7500	2.0000	0.5000
7/8	0.8750	9	14	0.8750	0.8660	1 5/16	1.3120	1.2850	1.5160	1.4650	35/64	0.5630	0.5310	0.3780	2.0000	2.2500	0.5560
1	1.0000	8	14	1.0000	0.9900	1 1/2	1.5000	1.4690	1.7320	1.6750	39/64	0.6270	0.5910	0.4160	2.2500	2.5000	0.6250
1 1/8	1.1250	7	12	1.1250	1.1140	1 11/16	1.6880	1.6310	1.9490	1.8590	11/16	0.7180	0.6580	0.4610	2.5000	2.7500	0.7140
1 1/4	1.2500	7	12	1.2500	1.2390	1 7/8	1.8750	1.8120	2.1650	2.0660	25/32	0.8130	0.7490	0.5300	2.7500	3.0000	0.7140
1 3/8	1.3750	6	12	1.3750	1.3630	2 1/16	2.0620	1.9940	2.3820	2.2730	27/32	0.8780	0.8100	0.5690	3.0000	3.2500	0.8330
1 1/2	1.5000	6	12	1.5000	1.4880	2 1/4	2.2500	2.1750	2.5980	2.4800	15/16	0.9740	0.9020	0.6400	3.2500	3.5000	0.8330

All dimensions are in inches.
Usable thread length for Hex Head Cap Screws under 6 1/4" long can be approximated by the equation THREAD LENGTH = (2 X DIAMETER) + 1/4″

316 SS Hex Cap Screw

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Diameter Thread Pitch Length Threading Item # Availability Price Quantity UOM

3/8

1/2

Full

HHS60370050

In Stock

$1.33178/EA

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3/8-16 X 1/2 316 STAINLESS STEEL HEX CAP SCREW

$1.33178/EA

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In Stock

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Quantity	Price
Quantity	Price
1	$1.33178/EA
300	$1.24964/EA
1190	$1.10881/EA
5350	$0.74451/EA

3/8

5/8

Full

HHS60370062

3-5 Working Days

$0.60288/EA

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3/8-16 X 5/8 316 STAINLESS STEEL HEX CAP SCREW

$0.60288/EA

Qty

3-5 Working Days

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Quantity	Price
Quantity	Price
1	$0.60288/EA
280	$0.56569/EA
1090	$0.50194/EA
4900	$0.33703/EA

3/8

3/4

Full

HHS60370075

In Stock

$0.50778/EA

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3/8-16 X 3/4 316 STAINLESS STEEL HEX CAP SCREW

$0.50778/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.50778/EA
260	$0.47646/EA
1010	$0.42277/EA
4510	$0.28387/EA

3/8

Full

HHS60370100

In Stock

$0.50264/EA

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3/8-16 X 1 316 STAINLESS STEEL HEX CAP SCREW

$0.50264/EA

Qty

In Stock

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Quantity	Price
Quantity	Price
1	$0.50264/EA
220	$0.47164/EA
870	$0.41849/EA
3910	$0.281/EA

3/8

1 1/4

Full

HHS60370125

In Stock

$0.54053/EA

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3/8-16 X 1 1/4 316 STAINLESS STEEL HEX CAP SCREW

$0.54053/EA

Qty

In Stock

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Quantity	Price
Quantity	Price
1	$0.54053/EA
200	$0.50719/EA
770	$0.45003/EA
3460	$0.30217/EA

3/8

1 1/2

Partial

HHS60370150

In Stock

$0.61369/EA

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3/8-16 X 1 1/2 316 STAINLESS STEEL HEX CAP SCREW

$0.61369/EA

Qty

In Stock

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Quantity	Price
Quantity	Price
1	$0.61369/EA
170	$0.57584/EA
670	$0.51095/EA
3010	$0.34307/EA

3/8

1 1/2

Full

HHS60370150TAP

In Stock

$0.62684/EA

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3/8-16 X 1 1/2 316 STAINLESS STEEL HEX CAP SCREW

$0.62684/EA

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In Stock

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Quantity	Price
Quantity	Price
1	$0.62684/EA
170	$0.58818/EA
670	$0.52189/EA
3010	$0.35042/EA

3/8

1 3/4

Partial

HHS60370175

In Stock

$1.35605/EA

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3/8-16 X 1 3/4 316 STAINLESS STEEL HEX CAP SCREW

$1.35605/EA

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In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.35605/EA
150	$1.27241/EA
600	$1.12902/EA
2670	$0.75808/EA

3/8

1 3/4

Full

HHS60370175TAP

In Stock

$0.77791/EA

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3/8-16 X 1 3/4 316 STAINLESS STEEL HEX CAP SCREW

$0.77791/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.77791/EA
150	$0.72993/EA
600	$0.64767/EA
2670	$0.43488/EA

3/8

Partial

HHS60370200

In Stock

$1.03392/EA

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3/8-16 X 2 316 STAINLESS STEEL HEX CAP SCREW

$1.03392/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.03392/EA
140	$0.97015/EA
540	$0.86082/EA
2400	$0.578/EA

3/8

Full

HHS60370200TAP

In Stock

$0.80618/EA

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3/8-16 X 2 316 STAINLESS STEEL HEX CAP SCREW

$0.80618/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.80618/EA
140	$0.75646/EA
540	$0.67121/EA
2400	$0.45068/EA

3/8

2 1/4

Partial

HHS60370225

In Stock

$1.43368/EA

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3/8-16 X 2 1/4 316 STAINLESS STEEL HEX CAP SCREW

$1.43368/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.43368/EA
130	$1.34526/EA
490	$1.19365/EA
2180	$0.80148/EA

3/8

2 1/2

Partial

HHS60370250

In Stock

$1.23497/EA

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3/8-16 X 2 1/2 316 STAINLESS STEEL HEX CAP SCREW

$1.23497/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.23497/EA
120	$1.1588/EA
450	$1.02821/EA
1990	$0.69039/EA

3/8

2 3/4

Partial

HHS60370275

In Stock

$1.2935/EA

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3/8-16 X 2 3/4 316 STAINLESS STEEL HEX CAP SCREW

$1.2935/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.2935/EA
110	$1.21372/EA
410	$1.07694/EA
1840	$0.72311/EA

3/8

Partial

HHS60370300

In Stock

$1.46348/EA

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3/8-16 X 3 316 STAINLESS STEEL HEX CAP SCREW

$1.46348/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.46348/EA
100	$1.37321/EA
380	$1.21846/EA
1700	$0.81813/EA

3/8

Full

HHS60370300TAP

In Stock

$1.96534/EA

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3/8-16 X 3 316 STAINLESS STEEL HEX CAP SCREW

$1.96534/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.96534/EA
100	$1.84412/EA
380	$1.6363/EA
1700	$1.0987/EA

3/8

3 1/4

Partial

HHS60370325

In Stock

$1.33489/EA

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3/8-16 X 3 1/4 316 STAINLESS STEEL HEX CAP SCREW

$1.33489/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.33489/EA
90	$1.25255/EA
360	$1.1114/EA
1590	$0.74625/EA

3/8

3 1/2

Partial

HHS60370350

In Stock

$1.56877/EA

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3/8-16 X 3 1/2 316 STAINLESS STEEL HEX CAP SCREW

$1.56877/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.56877/EA
90	$1.47201/EA
330	$1.30612/EA
1490	$0.87699/EA

3/8

3 3/4

Partial

HHS60370375

In Stock

$2.58098/EA

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3/8-16 X 3 3/4 316 STAINLESS STEEL HEX CAP SCREW

$2.58098/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$2.58098/EA
80	$2.42179/EA
320	$2.14887/EA
1410	$1.44286/EA

3/8

Partial

HHS60370400

In Stock

$1.53547/EA

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3/8-16 X 4 316 STAINLESS STEEL HEX CAP SCREW

$1.53547/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.53547/EA
80	$1.44077/EA
300	$1.2784/EA
1320	$0.85838/EA

3/8

4 1/2

Partial

HHS60370450

In Stock

$2.01933/EA

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3/8-16 X 4 1/2 316 STAINLESS STEEL HEX CAP SCREW

$2.01933/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$2.01933/EA
70	$1.89478/EA
270	$1.68125/EA
1190	$1.12888/EA

3/8

Partial

HHS60370500

In Stock

$3.66496/EA

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3/8-16 X 5 316 STAINLESS STEEL HEX CAP SCREW

$3.66496/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$3.66496/EA
60	$3.43891/EA
240	$3.05136/EA
1080	$2.04884/EA

3/8

Full

HHS60370500TAP

In Stock

$4.98833/EA

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3/8-16 X 5 316 STAINLESS STEEL HEX CAP SCREW

$4.98833/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$4.98833/EA
60	$4.68066/EA
240	$4.15317/EA
1080	$2.78865/EA

3/8

5 1/2

Partial

HHS60370550

In Stock

$3.41731/EA

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3/8-16 X 5 1/2 316 STAINLESS STEEL HEX CAP SCREW

$3.41731/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$3.41731/EA
60	$3.20653/EA
220	$2.84517/EA
990	$1.91039/EA

3/8

Partial

HHS60370600

In Stock

$2.60731/EA

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3/8-16 X 6 316 STAINLESS STEEL HEX CAP SCREW

$2.60731/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$2.60731/EA
60	$2.4465/EA
210	$2.17079/EA
910	$1.45758/EA

ASME B18.2.1	Covers the complete general and dimensional data for multiple types of inch series square and hex bolts and screws.
ASME B1.1 UNC & UNF Class 2A	Specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads.

316 SS Hex Cap Screw

Technical Data

Governing Standards

Governing Standards316 Stainless Steel

Dimensional Specifications

Dimensional Specifications316 Stainless Steel

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Width Across Points

3/8-16 X 1/2 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 5/8 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 3/4 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 1 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 1 1/4 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 1 1/2 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 1 1/2 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 1 3/4 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 1 3/4 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 2 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 2 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 2 1/4 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 2 1/2 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 2 3/4 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 3 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 3 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 3 1/4 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 3 1/2 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 3 3/4 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 4 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 4 1/2 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 5 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 5 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 5 1/2 316 STAINLESS STEEL HEX CAP SCREW

3/8-16 X 6 316 STAINLESS STEEL HEX CAP SCREW