10.9 Grade Bolt Black Galvanized Allen Cap Bolts Fasteners Manufacturer

Used in automotive applications and for bolting large and forged parts, metric 10.9 grade bolt exhibits high tensile strength and good wear resistance. Our metric 10.9 grade bolt meets ASTM A324 grade BD and SAE J429, Grade 8 standards. The yield strength of the bolts is 940 and the tensile strength is 1040 MPa. Ever Hardware provides custom-made fasteners and customizable packaging.

The hex socket screw drive has a hexagonal recess and may be driven by a hex wrench, also known as an Allen wrench, Allen key, hex key or inbus as well as by a hex screwdriver (also known as a hex driver) or bit. Tamper-resistant versions with a pin in the recess are available.

Galvanization, or galvanisation, (or galvanizing as it is most commonly called in that industry), is the process of applying a protective zinc coating to steel or iron, to prevent 10.9 grade bolt rusting. The most common method is hot-dip galvanizing, in which parts are submerged in a bath of molten zinc. Galvanizing protects in three ways:
It forms a coating of zinc which, when intact, prevents corrosive substances from reaching the underlying steel or iron.
The zinc serves as a sacrificial anode so that even if the coating is scratched, the exposed steel will still be protected by the remaining zinc.
The zinc protects its base metal by corroding before iron. For better results, the application of chromates over zinc is also seen as an industrial trend.

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