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18-8 SS Socket Set Screw

ASTM F880 stainless steel socket set screws are a headless fastener threaded its entire length (except for the point) used commonly for fastening mated parts such as a shaft and collar. The F912 specification covers the requirements for austenitic grade stainless steel socket-set screws. Dimensional specifications are governed by ASME B18.3. The socket set screw's headless design allows the fastener to sit flush, or inset, into the threaded part. Stainless steel fasteners are commonly used in applications that require general atmospheric corrosion resistance, such as chemical and food processing equipment. Stainless steel has a higher corrosion resistance than carbon steel.

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Governing Standards
Mechanical Properties
Chemical Properties
Dimensional Specifications

Dimensional Specifications

Dimensional SpecificationsStainless Steel Socket Set Screw

Per ASME B18.3-2012
Size	Nominal	UNC	UNF	J		T	C		Oval Point Radius	Cone Point Angles
				Hex Socket Size		Key Engagement	Cup & Flat Point Diameters		Oval Point Radius	Cone Point Angles
				Fraction Nominal	Decimal Nominal	Min	Max	Min	Basic	90 Deg Lengths
#0	0.0600		80	….	0.0280	0.0500	0.0330	0.0270	0.0450	0.0900
#1	0.0730	64	72	….	0.0350	0.0600	0.0400	0.0330	0.0550	0.0900
#2	0.0860	56	64	….	0.0350	0.0600	0.0470	0.0390	0.0640	0.1300
#3	0.0990	48	56	….	0.0500	0.0700	0.0540	0.0445	0.0740	0.1300
#4	0.1120	40	48	….	0.0500	0.0700	0.0610	0.0510	0.0840	0.1900
#5	0.1250	40	44	1/8	0.0620	0.0800	0.0670	0.0570	0.0940	0.1900
#6	0.1380	32	40	1/8	0.0620	0.0800	0.0740	0.0640	0.1040	0.1900
#8	0.1640	32	36	5/64	0.0780	0.0900	0.0870	0.0760	0.1230	0.2500
#10	0.1900	24	32	3/32	0.0940	0.1000	0.1020	0.0880	0.1420	0.2500
1/4	0.2500	20	28	1/8	0.1250	0.1250	0.1320	0.0118	0.1880	0.3100
5/16	0.3125	18	24	5/32	0.1560	0.1560	0.1720	0.1560	0.2340	0.3800
3/8	0.3750	16	24	3/16	0.1880	0.1880	0.2120	0.1940	0.2810	0.4400
7/16	0.4375	14	20	7/32	0.2190	0.2190	0.2520	0.2320	0.3280	0.5000
1/2	0.5000	13	20	1/4	0.2500	0.2500	0.2910	0.2700	0.3750	0.5700
5/8	0.6250	11	18	5/16	0.3120	0.3120	0.3710	0.3470	0.4690	0.7500
3/4	0.7500	10	16	3/8	0.3750	0.3750	0.4500	0.4250	0.5620	0.8800
7/8	0.8750	9	14	1/2	0.5000	0.5000	0.5300	0.5020	0.6560	1.0000
1	1.0000	8	14	9/16	0.5620	0.5620	0.6090	0.5790	0.7500	1.1300
1 1/8	1.1250	7	12	9/16	0.5620	0.5620	0.6890	0.6550	0.8440	1.2500
1 1/4	1.2500	7	12	5/8	0.6250	0.6250	0.7670	0.7330	0.9380	1.5000
1 3/8	1.3750	7	12	5/8	0.6250	0.6250	0.8480	0.8080	1.0310	1.6300
1 1/2	1.5000	6	12	3/4	0.7500	0.7500	0.9260	0.8860	1.1250	1.7500
1 3/4	1.7500	5	12	1	1.0000	1.0000	1.0890	1.0390	1.3120	2.0000
2	2.0000	4	12	1	1.0000	1.0000	1.2440	1.1930	1.5000	2.2500

All dimensions are in inches.

18-8 SS Socket Set Screw

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Diameter Length Item # Availability Price Quantity UOM

3/8

1/4

SSSS0370025

In Stock

$0.16091/EA

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3/8-16 X 1/4 F880 18-8 STAINLESS STEEL SOCKET SET SCREW CUP POINT

$0.16091/EA

Qty

In Stock

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Quantity	Price
Quantity	Price
1	$0.16091/ EA
1980	$0.15004/ EA
7920	$0.14168/ EA
35610	$0.09638/ EA

3/8

SSSS0370037

In Stock

$0.2479/EA

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3/8-16 X 3/8 F880 18-8 STAINLESS STEEL SOCKET SET SCREW CUP POINT

$0.2479/EA

Qty

In Stock

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Quantity	Price
Quantity	Price
1	$0.2479/ EA
1550	$0.23114/ EA
6200	$0.21827/ EA
27870	$0.14848/ EA

3/8

1/2

SSSS0370050

In Stock

$1.00613/EA

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3/8-16 X 1/2 F880 18-8 STAINLESS STEEL SOCKET SET SCREW CUP POINT

$1.00613/EA

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In Stock

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Quantity	Price
Quantity	Price
1	$1.00613/ EA
1100	$0.93813/ EA
4370	$0.88586/ EA
19630	$0.60261/ EA

3/8

3/4

SSSS0370075

In Stock

$0.49339/EA

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3/8-16 X 3/4 F880 18-8 STAINLESS STEEL SOCKET SET SCREW CUP POINT

$0.49339/EA

Qty

In Stock

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Quantity	Price
Quantity	Price
1	$0.49339/ EA
650	$0.46004/ EA
2580	$0.43441/ EA
11580	$0.29551/ EA

3/8

SSSS0370100

In Stock

$0.87201/EA

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3/8-16 X 1 F880 18-8 STAINLESS STEEL SOCKET SET SCREW CUP POINT

$0.87201/EA

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In Stock

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Quantity	Price
Quantity	Price
1	$0.87201/ EA
460	$0.81307/ EA
1810	$0.76777/ EA
8120	$0.52228/ EA

3/8

SSSS0370037NF

In Stock

$0.29331/EA

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3/8-24 X 3/8 F880 18-8 STAINLESS STEEL SOCKET SET SCREW CUP POINT

$0.29331/EA

Qty

In Stock

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Quantity	Price
Quantity	Price
1	$0.29331/ EA
1550	$0.27349/ EA
6200	$0.25825/ EA
27870	$0.17568/ EA

ASTM F880	This specification covers the requirements for austenitic grade stainless steel socket-set screws (SSS) sizes 0.060 through 1.000 in. square head set screws (SHSS) sizes 0.190 through 1.500 in., and slotted headless set screws (HSS) 0.060 through 0.750 in., in two conditions, AF and CW.
ASME B18.3	Covers the complete general and dimensional data for various types of hexagon socket cap screws, shoulder screws, set screws, and hexagon keys recognized as an American National Standard.
ASME B1.1 UNC & UNF Class 2A	Specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads.

Per ASTM F880-12
Austenitic Grade Stainless Steel	Rockwell Hardness Limits	Vickers Hardness Limits
Condition AF	70 to 95 HRB	125 to 210 DPH
Condition CW	96 HRB to 33 HRC	216 to 327 DPH

Per ASTM F880-12
Material	Carbon	Manganese	Phosphorus	Sulfur	Silicon	Chromium	Nickel	Copper
Material	% by weight	% by weight	% by weight	% by weight	% by weight	% by weight	% by weight	% by weight
UNS S30400	0.08	2.00	0.045	0.030	1.00	18.0 to 20.0	8.0 to 10.5	1.00

18-8 SS Socket Set Screw

Technical Data

Governing Standards

Governing StandardsStainless Steel Socket Set Screw

Mechanical Properties

Mechanical PropertiesStainless Steel Socket Set Screw

Chemical Properties

Chemical PropertiesStainless Steel Socket Set Screw

Dimensional Specifications

Dimensional SpecificationsStainless Steel Socket Set Screw

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3/8-16 X 1/4 F880 18-8 STAINLESS STEEL SOCKET SET SCREW CUP POINT

3/8-16 X 3/8 F880 18-8 STAINLESS STEEL SOCKET SET SCREW CUP POINT

3/8-16 X 1/2 F880 18-8 STAINLESS STEEL SOCKET SET SCREW CUP POINT

3/8-16 X 3/4 F880 18-8 STAINLESS STEEL SOCKET SET SCREW CUP POINT

3/8-16 X 1 F880 18-8 STAINLESS STEEL SOCKET SET SCREW CUP POINT

3/8-24 X 3/8 F880 18-8 STAINLESS STEEL SOCKET SET SCREW CUP POINT