1-3/4" x 7/16" Shank |Mag-Bit 626.2816| Hole Cutters | 1 Piece size-8-jun This caulking type machine screw

This caulking type machine screw anchor features a zinc alloy cone with a lead ring that results in quick setting

Pilot hole required for correct installation

Phillips Wafer Head

NAS 907B 135-degree split point drills on contact eliminating walking along with requiring less force or push

1-3/4" x 7/16" Shank |Mag-Bit 626.2816| Hole Cutters | 1 Piece size-8-jun This caulking type machine screwDiameters 11 16" through 3" Cuts up to 3 16" deep Auto ejecting slug Diameters 11 16" through 3". Cuts sheet metal, stainless steel, iron, cast iron, copper, abrasive materials such as high density resin and metal plate. Cuts up to 3 16" deep. Auto ejecting slug.