GRK Fasteners R4 1137 Framing Screw, #10 Thread, 3-1/8 in L, W-Cut Thread, Star Drive, Steel, Climatek, 350 SHEET METAL SCREWS - FH - ROB Additional sizes and styles are

Additional sizes and styles are available as are slide bolts and corner keys

TAPE MOUNTING CLEAR XL 1X150IN

Distillates (Petroleum)

waste and vent systems

GRK Fasteners R4 1137 Framing Screw, #10 Thread, 3-1/8 in L, W-Cut Thread, Star Drive, Steel, Climatek, 350 SHEET METAL SCREWS - FH - ROB Additional sizes and styles areGRK'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 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