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Stainless Steel American Standard Countersunk Head Torx Screw Manufacturer

Ningbo Teng Qi Fasteners Co., Ltd. is a professional manufacturer specializing in the production of ASTM B18.3 stainless steel countersunk head Torx screws. With a focus on high-quality materials and precise manufacturing processes, we ensure that our products meet the strictest industry standards. Our screws offer excellent corrosion resistance, durability, and a secure fit, making them ideal for a wide range of applications in various industries. We are committed to delivering reliable fastening solutions with exceptional performance and longevity.

American Standard STAINLESS STEEL 316 COUNTERSUNK HEAD TORX SCREW

ANSI ASME B18.3 American Standard STAINLESS STEEL 304 COUNTERSUNK HEAD TORX SCREW

Specification:

The specification of ASTM B18.3 Countersunk Head Torx Screw include the following details:

Product name	ASTM B18.3 Countersunk Head Torx Screw
Thread Diameter:	2#-1“
Material:	Stainless Steel SS304 SS316
Surface Treatment	Plain/Passive
Packaging:	Boxes/cartons into wooden pallets
MOQ:	200kg/Size

Dimension Chart of ASTM B18.3 Countersunk Head Torx Screw:

American Standard Countersunk Head Torx Screw Drawing

Thread Diameter		2#	4#	5#	6#	8#	10#	1/4	5/16	3/8	7/16	1/2	5/8	3/4	7/8	1
d		0.086	0.112	0.125	0.138	0.164	0.19	0.25	0.3125	0.375	0.4375	0.5	0.625	0.75	0.875	1
PP	UNC	56	40	40	32	32	24	20	18	16	14	13	11	10	9	8
	UNF	64	48	44	40	36	32	28	24	24	20	20	18	16	14	12
	UNEF	-	-	-	-	-	-	32	32	32	28	28	24	20	20	20
ds	max	0.086	0.112	0.125	0.138	0.164	0.19	0.25	0.3125	0.375	0.4375	0.5	0.625	0.75	0.875	1
ds	min	0.0822	0.1075	0.1202	0.1329	0.1585	0.184	0.2435	0.3053	0.3678	0.4294	0.4919	0.6163	0.7406	0.8647	0.9886
dk	max	0.197	0.255	0.281	0.307	0.359	0.411	0.531	0.656	0.781	0.844	0.938	1.188	1.438	1.688	1.938
dk	min	0.168	0.218	0.24	0.263	0.311	0.359	0.48	0.6	0.72	0.781	0.872	1.112	1.355	1.604	1.841
k	Ref	0.064	0.083	0.09	0.097	0.112	0.127	0.161	0.198	0.234	0.234	0.251	0.324	0.396	0.468	0.54
A	Ref	0.094	0.111	0.111	0.132	0.155	0.178	0.221	0.266	0.312	0.352	0.352	0.446	0.529	0.619	0.795
t	Ref	0.03	0.035	0.04	0.04	0.045	0.05	0.065	0.087	0.105	0.1	0.119	0.135	0.205	0.265	0.285
b	Ref	0.62	0.75	0.75	0.75	0.88	0.88	1	1.12	1.25	1.38	1.5	1.75	2	2.25	2.5
α	±2°	82°	82°	82°	82°	82°	82°	82°	82°	82°	82°	82°	82°	82°	82°	82°
Slot No.		T8	T10	T10	T15	T20	T25	T30	T40	T45	T50	T50	T55	T60	T70	T90

Application of ASTM B18.3 stainless steel countersunk head Torx screws:

ASTM B18.3 stainless steel countersunk head Torx screws have a wide range of applications due to their high strength, corrosion resistance, and secure fastening capabilities. Some key applications include:

Application	Details
Automotive Industry:	Used in critical engine components, braking systems, and chassis assembly due to their ability to withstand high torque and harsh environments.
Electronics and Electrical Equipment:	Commonly used in electronics assembly, where a flush surface is required to avoid interference with other components.
Construction and Building Materials:	Ideal for securing metal, wood, or plastic components in both indoor and outdoor construction projects due to their corrosion resistance.
Machinery and Equipment:	Used in industrial machinery for assembling parts that require precise and durable fastenings, ensuring long-term reliability and safety.