ANSI/ASME B18.3 Stainless Steel Hex Socket Countersunk Head Machine Screw Manufacturer In China

Ningbo Teng Qi Fasteners Co., Ltd. is a professional manufacturer specializing in ANSI/ASME B18.3 stainless steel hex socket countersunk head machine screws. With a focus on cold heading technology, we produce screws with thread sizes ranging from #2 to 1/2”, ensuring high precision and reliability.

Our strict quality control system guarantees compliance with thread gauges, dimensional accuracy, material specifications, and mechanical performance standards. This commitment to quality enables us to consistently deliver superior products that meet the rigorous demands of international markets.

Our products are widely exported to North America, Europe, and other regions, where they are trusted for their excellent performance and durability. At Ningbo Teng Qi Fasteners, we are dedicated to providing our customers with high-quality fastening solutions and exceptional service.

American Standard ANSI ASME B18.3F Stainless Steel Hex Socket Countersunk Head Machine Screw

ANSI ASME B18.3F SS304 SS316 Hex Socket Countersunk Head Machine Screw

Specification:

The specification of ANSI/ASME B18.3F stainless steel hex socket countersunk head machine screw include the following details:

Product name	ANSI/ASME B18.3F Stainless Steel Hex Socket Countersunk Head Machine Screw
Thread Diameter:	2#-1/2"
Material:	SS304 SS316
Surface Treatment	Plain/Nylok Patch/Thread Locking(3M, Loctite，Precote)
Packaging:	Boxes/cartons into wooden pallets
MOQ:	500kg/Size

Dimension Chart of ANSI/ASME B18.3F Stainless Steel Hex Socket Countersunk Head Machine Screw:

ANSI ASME B18.3F Stainless Steel Hex Socket Countersunk Head Machine Screw

Thread Diameter	#2	#3	#4	#5	#6	#8	#10	#12	1/4	5/16	3/8	7/16	1/2
P	56	48	40	40	32	32	24	24	20	18	16	14	13
dk max	0.197	0.226	0.255	0.281	0.307	0.359	0.411	0.45	0.531	0.656	0.781	0.844	0.938
dk min	0.168	0.193	0.218	0.24	0.263	0.311	0.359	0.41	0.48	0.6	0.72	0.781	0.872
kk	0.064	0.073	0.083	0.09	0.097	0.112	0.127	0.135	0.161	0.198	0.234	0.234	0.251
s	0.05	0.062	0.062	0.078	0.078	0.094	0.125	0.125	0.156	0.188	0.219	0.25	0.312
t min	0.038	0.044	0.055	0.061	0.066	0.076	0.087	0.094	0.111	0.135	0.159	0.159	0.172

Application of ANSI/ASME B18.3 Stainless Steel Hexagon Socket Button Head Cap Screws:

Our stainless steel hex socket countersunk head machine screws are designed for high precision and durability, making them ideal for a wide range of applications, including:

Application	Details
Automotive Industry：	Commonly used in vehicle interiors and exteriors where a smooth surface finish is essential.
Electronics and Electrical Equipment:	Used in assembling precision electronic devices and enclosures. Ensure secure fastening without interfering with compact designs.
Industrial Machinery：	Widely used in the assembly of heavy-duty equipment and machinery. Provide secure fastening in applications where vibration resistance and structural integrity are required.
Medical and Pharmaceutical Equipment:	Commonly found in medical devices and pharmaceutical machinery due to their non-reactive and durable nature. Examples include surgical instruments, diagnostic equipment, and laboratory apparatus.
Furniture and Interior Design:	Frequently used in furniture assembly and decorative structures where a smooth, low-profile finish is desired. Examples include modular furniture, architectural hardware, and decorative fixtures.