GRK 12225 Rugged Structural Screw, 5/16" x 4" Pneumatic Tools Reduced potential for mushrooming in

Reduced potential for mushrooming in composite decking

Color: Warm Gray

Protects metal and wood surfaces

Stainless steel filter

Bright red 2 mil

GRK 12225 Rugged Structural Screw, 5/16" x 4" Pneumatic Tools Reduced potential for mushrooming inThe GRK 5 16 in. x 4 in. Steel Washer Head RSS Screws (100 Pack) are for use with pre drilled hardware and as lag screw replacements. The screws are designed with a small shank to limit splitting and to provide strength. Highlights: Bit size : #30 Size : 5 16" x 4" Built in washer Climatek coated Sharp threads and points W Cut thread design, Zip Tip Self tapping specially hardened steel screw