5/16-18 Hex Head Cap Screw, Black Chrome Steel, 3/4 In L, 8 PK

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A sheet metal screw has sharp threads that cut into a material such as sheet metal, plastic, wood, hard rubber, aluminum, and other comparable compositions..Sheet metal screws make excellent fasteners for attaching metal hardware to wood because the fully threaded shank provides good retention in wood.

Ideal for any project involving light gauge sheet metal, awnings, door and window frames, gutters, sheds.. A self-drilling screw, or tek screw, is similar to a sheet metal screw, but it has a drill-shaped point to cut through the substrate to eliminate the need for drilling a pilot hole.

. Especially useful in metal-to-metal or where heavy duty fastening is required.

Machine screws are used in fastening nearly all types of hard materials. Commonly used with flat or lockwashers.. Especially useful in metal-to-metal or where heavy duty fastening is required.