Description
Has an indented top surface, six flat sides with a flat washer which project beyond the sides and provides a flat bearing surface. Accepts hex wrench. Slotted drive is added to make it easier to remove. A tapping screw with spaced threads and a drill point which drills its own holes. All self drilling screws offer economical benefits; reduces labor and tooling costs; reduces or eliminates the need for drill and taps.
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