Mechanical parts, cylindrical threaded fasteners for nuts. A fastener consisting of a head and a screw (a cylinder with external threads) in two parts, to be fitted with a nut, for fastening two parts with a through hole.
Specifications:
M4~M16
Level:
10.9~12.9
Product Features:
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Made of alloy steel, such as SCM435, SCM440, 42CrMo, etc
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The tensile strength is usually much stronger than that of ordinary bolts
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A higher preload force than ordinary bolts can be applied to ensure the tightness and reliability of the connection
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Surface treatment multi-phosphating and chromium-free coating
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Thread and head dimensions are subject to strict tolerances
