GRK RSS 5/16 In. x 4 In. Black Star Drive Washer Head Structure Screw (25 Ct.) bold 135-degree split-point tip starts drilling

135-degree split-point tip starts drilling immediately with less force and eliminates "walking" across the work surface

top or bottom

Bat guano has been used for centuries as a fertilizer for all kinds of plants

Ideal for all kinds of hard surfaces including: Fully cured varnished or oil-based painted surfaces

The durable gray plastic material has a smoked transparent cover

GRK RSS 5/16 In. x 4 In. Black Star Drive Washer Head Structure Screw (25 Ct.) bold 135-degree split-point tip starts drillingGRK RSS Black Structural Screw is a structural fastener designed for ease of installation and the strongest of connections while providing a bold finish. With proprietary features like the Zip Tip, and W Cut thread, RSS fasteners drive into most woods without the need for pre drilling. The specially engineered design results in a low effort installation, especially compared to conventional lag screws. RSS Rugged Structural Screws have a Climatek