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High Tensile Screws

We endeavor to be a full service supplier and manufacturer in the diameter range from M5 to M20 with a maximum part length of 300mm. We have experience in various grades of steel right from 8.8 to 12.9 and also special material like Stainless steel and Boron Steel. We manufacture a range of U.N.F. Socket Cap Head Screws High Tensile for precision-driven sectors like Automotive, Wind Energy, Aviation, Aerospace, Farm Equipment, Infrastructure and Defence.

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These screws tensile specifications are 10,000 psi higher than industry standard – while maintaining the core hardness range. It is highly appreciated for its cost effective and wear & tear resistant features.

ASTM A193 / A194 High Tensile Screws Specification

Product name	High Tensile Screws
Grades	High Tensile Screws Grade 8.8 High Tensile Screws Grade 12.9 High Tensile Screws Grade 10.9
Standard	IS / BS / BSW / DIN / ASME / ASTM, ISO 4017, DIN931, GB5783, DIN, ASTM, ANSI, JIS, EN, AS
DIN Standard	B.S. DIN933 DIN931 DIN934 DIN912 DIN603 DIN6923
Surface treatment	Passivation /plain
Size	M2 – M100
Diameter	M3-M60
Length	6mm-500mm
Head	Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc
Neck type	Hex, Square, Triangular, Oval & Knurled etc
Drive type	Phil, Slotted, Hex socket, Torx & square slot etc
Material	1. Stainless Steel: SS201, SS303, SS304, SS316, SS410, SS420 2. Steel: C45(K1045), C46(K1046),C20 3. Brass: C36000 ( C26800), C37700 ( HPb59), C38500( HPb58) 4. Bronze: C51000, C52100, C54400, etc. 5. Iron: 1213, 12L14, 1215 6. Aluminum: Al6061, Al6063 etc. 7. Carbon steel: C1006, C1010, C1018 ,C1022, C1035K, C1045 8. Alloy steel: SCM435, C10B21, C10B33
Application	Wind tower, Nuclear power, Railway, Automotive industry, Railway, Construction, Electronic industry
Dimensions	ASME B18.6.3 **Exception: screws 6 inches and shorter are fully threaded.
Thread Requirements	ASME B1.1, UNC & UNF, Class 2A (Fastenal will inspect and accept parts with a 1A no-go gauge)
Finish	Per ASTM A380/A380M
Finishing	Zinc Plated (Yellow, White, Blue, Black), Passivated, Hop Dip Galvanized (HDG) phosphorization, Black Oxide, Geomet, Dacroment, Sandblast and Anodize, Chromate, Electro Painting, Black Anodize, Chrome plated, Nickel plated, Zinc-Nickel plated, Brass Plated, Tin Plated, Black Plated, Copper Plated, Gold Plated, Salt fog test
Stock Products	Stainless steel: All DIN, GB Standard and part ASNI standard High Tensile Screws, Example: ISO7380, DIN7981, DIN7982, DIN916, DIN913, DIN7985, DIN912
Production technology	Cold Forged
Manufacturing Process	Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing
MOQ	10 pieces
Delivery time	Regular product is about 7-15 days, custom product will according to special requirement
Others	OEM, ODM, ±0.03MM tolerance
Surface treatment	Passivation Polish Anodizing Sand blasting Electroplating (color, blue, white, black zinc, Ni, Cr, tin, copper, silver) Black oxide coating Heat-disposing Hot-dip galvanizing Rust preventive oil
Coatings	Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request
Tolerance	+/-0.01mm to +/-0.05mm
Samples	Yes
Production Capacity	2,700,000 pieces per month
Payment Terms	T/T, Paypal, Western Union, L/C or Trade Assurance 30% deposit & balance before shipping
Specialized in	High Tensile Screws CSK philip screw, CSK socket screw, Pan head Ph screw, Pan head socket screw, Socket cap head screw, set screw, Pan head torx screw, CSK head trox screw, Wood screw

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