GRK Fasteners R4 103133 Screw, #10 Thread, 2-1/2 in L, W-Cut Thread, Bugle Head, Star Drive, Steel, 80 PK DOORS & WINDOW Available in existing 8 Oz

Available in existing 8 Oz

Cast aluminum blade fastened with rivets

seagulls and larger

This design is identified by a 5/16 in pilot and ball groove which is nearly round

UPC: 082901220787

GRK Fasteners R4 103133 Screw, #10 Thread, 2-1/2 in L, W-Cut Thread, Bugle Head, Star Drive, Steel, 80 PK DOORS & WINDOW Available in existing 8 OzGRK's R4 Self countersinking screw has a patented underhead 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 a perfectly clean hole into even the most brittle materials without cracking any surface treatment. This design enhances the R4s versatility by allowing the fastener to countersink into even