GRK Fasteners R4 121050 Screw, #9 Thread, 3-1/8 in L, Bugle Head, Star Drive, Self-Drilling, Self-Tapping Point, Steel Audio & Video Supplies 1320 ft Length

1320 ft Length

67 in W x 1 in H

It has a Heavy-duty die-cast steel handle with serrated jaws

Apply for excellent wear

Because the balls are permanently welded to the shank

GRK Fasteners R4 121050 Screw, #9 Thread, 3-1/8 in L, Bugle Head, Star Drive, Self-Drilling, Self-Tapping Point, Steel Audio & Video Supplies 1320 ft LengthGRK's R4 self countersinking screw has a patented under head with saw blade like cutting teeth and six self contained cutting pockets. Together they act similar to a circular saw blade, transporting the drill dust away from the edge of the screw hole while cutting an ideally clean hole into even the most brittle materials without cracking any surface treatment. This design enhances the R4's versatility by allowing the fastener to countersink into even