GRK 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 Coating for installation in both interior and exterior conditions where exposure to moisture is intermittent and is code-approved for use in treated lumber. threads and point bite instantly into material (including hardwood), reducing the splitting effect caused by smaller shanks. Its washer type head has no sharp edges like conventional lag screws and the added shoulder underneath the washer has the ability to center the RSS screw in predrilled hardware.
Black coating matches decorative hardware for a cohesive looking deck build
Fast-biting Zip-Tip eliminates pre-drilling and provides a fast start making it easy to get the strongest of connections
Star drive recess has 6 points of contact, eliminating stripping
Unique thread design draws two substrates together while its washer head allows zero gap joints
Designed for outdoor and decking applications
W-Cut low torque, faster drive
Speedy lag bolt alternative with immense drawing power
Climatek coating is AC257 Code approved for use in treated lumber
Limited lifetime warranty
