Grip-Rite® Exterior Screws are designed for dependable performance in most non-structural outdoor building projects. The exclusive PrimeGuard Plus® coating provides lasting protection against corrosion and rust, making these screws ideal for decks, fences, siding, and other exterior applications. A T-20 or T-25 star drive ensures maximum torque and reduces cam-out, while coarse threads and a self-drilling T17 point allow fast, efficient installation. The bugle head with nibs countersinks easily for a clean, flush finish every time. Protected by a 10-year limited warranty when installed correctly and tested to meet ASTM B-117 corrosion resistance standards.
GRK’s Cabinet screws are designed for fast cabinet installation with a washer-style head that seats flush which increases holding power. It's also manufactured in a #8-gauge (4 mm) diameter for universal size convenience.
The Backer-On Cement Board Screws are designed for fast, reliable attachment of fiberglass reinforced cement boards such as Durock® and WonderBoard® to wood or light-gauge steel framing. Engineered for professional performance, these screws seat flush when driven at an angle and allow installation close to edges without causing fractures or blowouts. A Stikfit recess enables one-handed driving, eliminating cam-outs and wobbling for faster, more precise work. The premium corrosion-resistant finish protects against rust, ensuring clean, long-lasting grout lines and durable installations.
The GRK R4 Multi-Purpose Framing and Decking Screws are engineered for fast, reliable installation, improving productivity on a wide range of construction projects. Ideal for general framing, remodeling, decking top boards, and structural framing, these screws are truly multi-purpose. R4 Screws perform in a variety of materials including wood, particle board, plastic, sheet metal, cement fiber board, wood decking, composite decking, and melamine, giving you versatility and confidence in every project. Designed for both strength and ease of use, these screws let you frame, build, and secure materials quickly and efficiently.
The GRK FIN/Trim Head Screws are designed for fine carpentry and precision trim work, making them ideal for window extension jambs, molding, and other detailed wood installations. Perfect for composite decks and trim applications, these screws combine strength, speed, and a clean finished appearance. Engineered with W-Cut threads and Zip-Tip points, they minimize wood splitting and allow for fast, single-step installation without pre-drilling. The Climatek indoor/outdoor coating provides corrosion resistance and is approved for use in treated lumber under ICC-ES AC257. The trim head design ensures a neat, professional look, while the precision recessed star drive offers six points of contact to eliminate stripping.
The GRK RT Composite Screw is specifically designed for attaching composite decking, trim, and cellular PVC materials with a professional, flush finish. Its reverse threading under the head prevents mushrooming, allowing the screw to sink neatly below the surface for a smooth, even appearance. Featuring a trim head and Zip-Tip point, these screws enable one-step, no-pre-drilling installation, saving time while ensuring precision. W-Cut threads reduce installation torque for fast, effortless driving, and the star drive design prevents stripping for improved productivity on every project. Coated with Climatek corrosion-resistant finish, the RT Composite Screws are suitable for interior and exterior applications, including areas with intermittent moisture, and are code-approved for use in treated lumber. Backed by a limited lifetime warranty, they deliver durable, professional-quality results for composite and PVC projects.
GRK RSS™ Rugged Structural Screw – Lag Alternative for Strong, Fast Connections The GRK RSS™ Rugged Structural Screw is a high-performance structural fastener designed for easy installation and maximum strength. Engineered as a lag screw alternative, RSS Screws drive into most woods without pre-drilling, making them faster and easier to install than conventional lag screws while providing strong, reliable connections. Featuring a Fast Bite Tip for a quick start, Zip-Tip™ technology to eliminate pre-drilling, and W-Cut™ threads for low torque and rapid driving, these screws combine speed and strength for professional applications. The Precision Fit design reduces wobble between the screw and GRK bit, improving productivity, while the Star Drive recess provides six-point contact for zero stripping. With a Climatek™ corrosion-resistant coating, RSS Screws are code-approved for treated lumber and suitable for a variety of interior and exterior structural projects.
The GRK Star Drive Bits (2" lengths, color-coded) are engineered for maximum driving efficiency and durability with GRK star drive screws. Featuring six points of contact, these bits help eliminate stripping, ensuring fast, reliable fastening and improved productivity for all your carpentry and decking projects. The color-coded design makes it easy to quickly identify bit sizes, saving time on the job site. Built for professional use, GRK Star Drive Bits provide a secure fit with GRK screws, reducing wobble and making repetitive driving tasks faster and easier.
The GRK R4 Multi-Purpose Screws (305 Stainless Steel, Star Drive) are engineered for strength, precision, and long-term corrosion resistance in the toughest outdoor environments. Designed for use in wet or coastal areas, these stainless steel fasteners are ideal for decks, docks, boardwalks, pools, and spas. Made from 305 stainless steel, R4 Screws provide exceptional durability and protection against rust and staining, even in high-moisture conditions. The Star Drive recess ensures six points of contact for superior torque transfer and reduced stripping, while the self-countersinking head and W-Cut™ thread design allow smooth, fast installation in a variety of wood types—including cedar, redwood, and ipe.
