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External hex, Zinc plated steel, #10

US Fasteners, External hex, Zinc plated steel, #10

Hex head

Sheet metal screws

Screws with large threads for use in sheet metal sometimes also used in plastic, fiberglass or wood.

Flange bolts

Flange bolts

Flange bolts have a flange on the bottom of the head that distributes the load like a washer.

Machine screws hex washer head

Machine screws

Screws with machine threads for use with a nut or in a tapped hole.