Mounting insert screw special type socket drive grade 12.9 black plating

Mounting insert screw is a threaded insert, also known as a threaded bushing, is a fastener element that is inserted into an object to add a threaded hole.screws for mill inserts. Ever Hardware provides custom made mounting insert screw 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.
The German company Bauer & Schaurte patented the hex socket 1936 in Germany, and offered products based on it to the market. The abbreviation “Inbus” is derived from “Innensechskant Bauer & Schurte”, analogous to the US use of “Allen key”.

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 mounting insert screw rusting. The most common method is hot-dip galvanizing, in which parts are submerged in a bath of molten zinc. 

12.9 grade steel means that a component manufactured form this grade of steel has 12X100 N/mm^2 tensile strength and 9 is a multiplier means 90% of 1200 = 1080 N/mm^2 is the yield strength of the grade. Similarly we also have grade 8.8 , 10.9 , 6.8 also. This is imperial method implied by engineers to differentiate between different sets of steel grade. Mainly used to differentiate the bolts and nuts. like Grade 12.9 Hexagonal Bolt.

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Category Mounting Insert Screw
Finish Galvanization or As request
Type Machine-threaded or As request
Material Teflon/Brass/Stainless steel/carbon steel/Aluminum
Brand Ever Hardware
Place of origin China Mainland
Size option As request
Color Black or as request

Mounting insert screw special type socket drive grade 12.9 black platingEver Hardware Industrial Limited

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