High strength ASTM Double End Stud Bolt, High Strength Stud Bolt Double end stud bolt black Grade: SAE J429 Gr.2, 5,8; ASTM A307Gr.A, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 and etc. Material: Carbon Steel, Alloy Steel, Stainless Steel, Brass and etc. Standard: ASME B 18.2.1, IFI149,DIN931, DIN933, DIN558, DIN960, DIN961, DIN558, ISO4014, DIN912 and […]
Carriage Bolt Fastener
Standard: DIN, ASTM/ANSI JIS EN ISO, AS, GB
Material Stainless Steel: SS201, SS303, SS304, SS316, SS316L, SS904L, SS31803
Steel Grade: DIN: Gr.4.6, 4.8, 5.6, 5.8, 8.8, 10.9, 12.9; SAE: Gr.2,5,8; ASTM: 307A, 307B, A325, A394, A490, A449
Finishing: Zinc (Yellow, White, Blue, Black), Hot Dip Galvanized(HDG), Black, Geomet, Dacroment, anodization, Nickel plated, Zinc-Nickel plated
Production Process: M2-M24: Cold Froging, M24-M100 Hot Forging, Machining and CNC for Customized fastener
Surface treatment: Zinc, HDG, phosphorization, Black, Geomet, Dacroment
Application: Machinery, Chemical Industry, Environmental, Building
A bolt is a form of threaded fastener with an external male thread. Bolts are thus closely related to, and often confused with, screws. A hex cap screw is a cap screw with a hexagonal head, designed to be driven by a wrench (spanner). An ASME B18.2.1 compliant cap screw has somewhat tighter tolerances than a hex bolt for the head height and the shank length. The nature of the tolerance difference allows an ASME B18.2.1 hex cap screw to always fit where a hex bolt is installed but a hex bolt could be slightly too large to be used where a hex cap screw is designed in.
All of the Carriage Bolt Fastener widely used in automobiles, major engineering projects, mechanical engineering, petrochemical engineering, building, vessels, bridges, metallurgy, environmental protection and so on.
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Hex Bolts are always made by carbon steel, alloy steel and stainless steel.
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