GRK Caliburn XL Concrete Screw - Extra Long, Steel - 400 Count, 19/64" x 3-1/2", Yellow

GRK 55778 19/64 in. x 3-1/2 in. CALIBURN XL Concrete Screws, available in a 400 count pack, are designed for secure and reliable fastening in concrete and masonry applications. These extra large screws are made from durable steel and feature a yellow finish for easy identification on the job site. The heavy duty long screw design ensures strong anchoring power, making them ideal for projects that require a dependable anchor screw for cement, block, or brick. The XL screw size provides enhanced grip and stability, reducing the risk of loosening over time. Perfect for both professional contractors and DIY enthusiasts, these screws are suitable for use with caulk joint compound and other construction materials where a robust hold is essential. The GRK brand is known for its innovative fastening solutions, and these 19/64 in. screws deliver consistent performance for a wide range of building and renovation tasks. Whether you are working on structural framing, securing fixtures, or general repairs, these XL large screws offer the strength and reliability needed for demanding projects.

• PRODUCT IDENTIFICATION: Grk fastener 400 count — sourced direct from the manufacturer or authorized distributor. Designed for standard US residential install conditions across remodel, new-construction, and individual fixture replacement work.
• FASTENER INSTALLATION: Standard hardware spec — designed for residential and commercial construction, framing, finishing, and fastening work. Built to meet common US residential install specs across new-construction and replacement work.
• 400 COUNT SIZE: Sized at 400 count — the standard residential spec for the intended application. Designed for standard US residential install conditions across remodel, new-construction, and individual fixture replacement work.
• GRK BRAND: Part of the GRK residential product line — backed by manufacturer support and warranty terms as specified by the brand. Sourced direct from the manufacturer or authorized distributor. Designed for standard US residential install conditions across remodel, new-construction, and individual fixture replacement work.
• RESIDENTIAL & COMMERCIAL USE: Designed for standard US residential and light-commercial install conditions across new-construction, full remodel, and individual unit replacement work. Pairs with matching same-brand accessory items where applicable.