Shoulder Bolt

We specialize in manufacturing shoulder bolts and non-standard fasteners with OEM/ODM capability. Based on your drawings or samples, we offer customized production and help solve sourcing difficulties for special-sized bolts and unstable delivery issues in small-batch orders.

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Shoulder Bolt

We are a professional custom shoulder bolt manufacturer in China with full OEM/ODM capability. By using CNC turning equipment and automatic lathes, we produce precision non-standard shoulder screws based on your drawings and samples.

Our shoulder bolts are widely used in consumer electronics, precision machinery, robotics and automation equipment.

As a reliable OEM shoulder bolt supplier, we help customers solve issues such as difficult-to-source non-standard fasteners, unstable delivery times for small batch orders and high cost of customized parts.

With strict quality inspection and flexible production capacity, we can support your needs for special-size stepped screws, dowel screws, and other customized shoulder fasteners with complex structures.

Feel free to contact us for quotation or sample.

American Standard Set Screw ASME B18.3-2012

Specifications

Standard: According To ASME B18.3-2012
Material: Alloy Steel
Hardness: HRC 39-44
Screw Threads: ANSI B1.1 UNC
Class of thread: ANSI B1.1 Class 3A
Surface Treatment: Black Oxide

Nominal Diameter	D	A	H	D1	E	T	J
	Max	Min	Max	Min	Max	Min	Nom
1/4	0.2480	0.2460	0.375	0.357	0.188	0.177	10
5/16	0.3105	0.3085	0.438	9.780	0.219	0.209	1/4
3/8	0.3730	0.3710	0.562	12.730	0.250	0.240	5/16
1/2	0.4980	0.4960	0.750	15.730	0.312	0.302	3/8
5/8	0.6230	0.6210	0.875	17.730	0.375	0.365	1/2
3/4	0.7480	0.7460	1.000	17.730	0.500	0.490	5/8
1	0.9980	0.9960	1.312	23.670	0.625	0.610	3/4

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