Established in 1988

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Black Oxide Coating

Black Oxide Coating

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Black Oxide Coating is a process which provides a conversion coating on iron which changes the surface of the material to a naturally occurring black iron oxide. It oxide a pleasing aesthetic finish as well as a minimal change in surface dimensions , .0005" (5 millionths of an inch). Though the black oxide does provide some corrosion protection by itself it is necessary to put a protective oil on this finish to keep it from rusting.
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The hook bolts are of the highest standard are PERFECT. The nuts were a bonus to us, thanks. We will be placing additional orders.