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 SCREWDRIVER HARDGRIP 2-ROB 5IN

SCREWDRIVER HARDGRIP 2-ROB 5IN

waste and vent systems

long-lasting pipe joint

TAPE MOUNTING CLEAR XL 1X150IN

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

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 SCREWDRIVER HARDGRIP 2-ROB 5INGRK'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