Black Oxide Stainless Steel Socket Cap Screws
Black Stainless Steel Internal Hex Drive Screws
A socket cap screw is a fastener driven with a socket wrench, and are knurled. Socket cap screws made of stainless steel are used primarily for long lasting applications, due to its corrosion-resistant nature and durability. Scratching or burring the metal will not create surface rust as the corrosion resistance exists within the metal itself.
Black oxide fasteners are stainless steel fasteners that have been chemically treated to alter certain qualities of the material, most notably the color. The treatment adds a mild corrosion and abrasion resistance and reduces the now black oxide stainless steel fasteners reflective properties.
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