3/8-16 x 4-1/2 Inch Coarse Black Oxide Heat-Treated Alloy Steel Socket Cap Screw Best Seller 3-Flat Shank – Reduces slippage

3-Flat Shank – Reduces slippage in the drill chuck for easier operation

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3/8-16 x 4-1/2 Inch Coarse Black Oxide Heat-Treated Alloy Steel Socket Cap Screw Best Seller 3-Flat Shank – Reduces slippageSocket head cap screws are commonly used in machine assembly for removable panels and parts. They have a round cap with a hex head and are tightened with a socket wrench drive. Longer caps are easier to see when fastened while button and flat head caps are less likely to snag clothing or linkages. Cap screws with a black oxide or armor coat finish resist corrosion.