- GRKRugged Structural Screws RSS - 3/8" x 7 1/4" - 50/PkgThe RSSMC screw is crafted from special hardened steel to provide excellent resistance to shear, tensile, and torque forces. Its sharp points and threads allow for smooth penetration into hardwood, limiting splits. Designed for demanding uses, it ensures a reliable, durable hold and is approved for treated wood.$194.98
- In stock
- In-store pickup
- Parcel delivery
- Truck delivery
- GRKRugged Structural Screws RSS - 1/4" x 3 1/8" - 50/PkgMade from special hardened steel, the RSSMC screw offers exceptional resistance to tensile, torque, and shear forces. Its sharp points and threads allow for easy penetration, even in hardwood, limiting potential splits. Ideal for demanding tasks, this screw ensures a strong hold and is approved for use with treated wood.$28.48
- In stock
- In-store pickup
- Parcel delivery
- Truck delivery
- GRKRugged Structural Screws RSS - 3/8" x 12" - 50/PkgEquipped with special hardened steel, the RSSMC screw offers exceptional resistance to tensile, torque, and shear forces. Designed to easily penetrate tough materials, it features sharp points and threads, making it ideal for hardwood without causing splits. Perfect for demanding applications, it ensures a strong hold and is suitable for treated wood.$419.98
- In stock
- In-store pickup
- Parcel delivery
- Truck delivery
- GRKRugged Structural Screws RSS - 1/4" x 3 1/2" - 50/PkgCrafted from special hardened steel, the RSSMC screw provides great resistance to shear, tensile, and torque forces. Its sharp points and threads ease insertion into hard materials like hardwood, reducing the risk of splitting. This screw is ideal for intense applications and guarantees a reliable hold, even in treated wood.$42.98
- In stock
- In-store pickup
- Parcel delivery
- Truck delivery
- GRKRugged Structural Screws RSS - 3/8" x 3 1/8" - 50/PkgThanks to its special hardened steel, the RSSMC screw offers optimal resistance to shear, tensile, and torque forces. Its sharp points and threads allow for effective penetration into hardwood, limiting the risk of splitting. Designed for intensive applications, it provides a strong hold and is suitable for treated wood.$72.98
- In stock
- In-store pickup
- Parcel delivery
- Truck delivery
- GRKRugged Structural Screws RSS - 3/8" x 5 1/8" - 50/PkgWith its special hardened steel construction, the RSSMC screw ensures increased resistance to shear, tensile, and torque forces. Its sharp points and threads penetrate hardwood effortlessly, minimizing potential splits. Ideal for robust applications, it provides a durable hold and is approved for treated wood.$119.98
- In stock
- In-store pickup
- Parcel delivery
- Truck delivery
- GRKRugged Structural Screws RSS - 5/16" x 3 1/8" - 100/PkgThe RSSMC screw, made from hardened steel, is designed to offer excellent resistance to tensile, torque, and shear forces. Its sharp points and threads penetrate hardwood easily, minimizing the risk of splitting. Created for robust applications, it provides a durable hold and is well-suited for treated wood.$94.98
- In stock
- In-store pickup
- Parcel delivery
- Truck delivery
- GRKRugged Structural Screws RSS - 5/16" x 4" - 100/PkgMade from special hardened steel, the RSSMC screw stands out for its increased resistance to tensile, torque, and shear forces. Thanks to its sharp points and threads, it easily penetrates tough materials like wood while minimizing potential splits. This robust screw is perfect for demanding applications and is suitable for treated wood.$107.98
- In stock
- In-store pickup
- Truck delivery
- GRKRugged Structural Screws RSS - 5/16" x 5 1/8" - 50/PkgCrafted from special hardened steel, the RSSMC screw provides remarkable resistance to tensile, torque, and shear forces. Its sharp points and threads enable easy penetration into tough materials, including hardwood, while limiting splitting. Ideal for intensive projects, it ensures a durable hold and is approved for use with treated wood.$82.98
- In stock
- In-store pickup
- Truck delivery
- GRKRugged Structural Screws RSS - 5/16" x 6" - 50/PkgThe RSSMC screw is distinguished by its special hardened steel construction, which provides high resistance to tensile, torque, and shear forces. Its design, with sharp points and threads, makes it easy to insert into hardwood and reduces the risk of splitting. Perfect for demanding tasks, it guarantees a durable hold and is suitable for treated wood.$102.98
- In stock
- In-store pickup
- Truck delivery
- GRKRugged Structural Screws RSS - 5/16" x 5 1/8" - 300/PkgRSS structural screws are crafted from specially hardened steel, providing exceptional tensile, torque, and shear strength. They are designed to easily penetrate tough materials, including hardwood. With sharp points and threads, they effectively reduce the risk of cracking.$429.98
- Available online
- 7 to 10 day pickup
- GRKScrews - STR - RSS - 5/16" x 2 1/2" - 600/pkgBuilt for structural applications, this GRK RSS screw features hardened steel construction for exceptional mechanical resistance. It drives easily into wood—including tough hardwoods—without the need for a pilot hole, thanks to its tapered self-drilling tip and sharp threads. Strong and long-lasting, it’s ideal for both residential job sites and exterior builds.$359.98
- Available online
- 7 to 10 day pickup
- Parcel delivery
- GRKScrews - STR - RSS - 5/16" x 2 3/4" - 500/pkgMade from hardened steel, this GRK RSS screw delivers excellent resistance to torque, pull-out, and shear. Its sharp threads and self-drilling point allow it to drive easily into wood—even without a pilot hole—while minimizing the risk of splitting. It’s a safe and durable option for heavy-duty wood assemblies, whether for exterior use or residential construction.$369.98
- Available online
- 7 to 10 day pickup
- Parcel delivery
- GRKScrews - STR - RSS - 5/16" x 3 1/2" - 500/pkgThanks to its hardened steel construction, this RSS screw offers impressive strength under shear, pull-out, and torque forces. It installs easily into dense wood types using a self-drilling tip and sharp threading that help prevent cracking. Ideal for strong, lasting connections in both residential and outdoor projects.$409.98
- Available online
- 7 to 10 day pickup
- Parcel delivery
- GRKRugged Structural Screws RSS - 5/16" x 2 1/2" - 100/PkgMade from specially hardened steel, this RSS structural screw is designed to offer exceptional resistance to shear, tension, and torque. Its sharp point and aggressive threads drive quickly into the material, even hardwoods, while reducing the risk of splitting often caused by thinner shafts. Thanks to its optimized design, it allows for efficient and secure installation without pre-drilling in most cases. Supplied with its matching bit, this screw is a high-performing alternative to traditional lag screws for demanding structural assemblies.$72.98
- Available online
- 7 to 10 day pickup
- GRKRugged Structural Screws RSS - 5/16" x 2 3/4" - 100/PkgCrafted from high-quality hardened steel, this RSS structural screw stands out for its strong resistance to tension, torque, and shear. Its sharp tip and aggressive threading allow for fast penetration, even in dense hardwoods, while minimizing the risk of cracks caused by smaller-diameter screws. Its technical profile ensures quick and reliable installation, typically without the need for pre-drilling. Supplied with a dedicated bit, it provides a dependable solution for replacing lag screws in high-stress structural connections.$92.98
- Available online
- 7 to 10 day pickup
- GRKRugged Structural Screws RSS - 3/8" x 4" - 400/PkgRSS structural screws, made from specially hardened steel, offer exceptional resistance to tensile, torque, and shear forces. Designed to penetrate the toughest materials, including hardwood, they ensure reliable fastening. Their sharp points and threads minimize cracking risk, guaranteeing a seamless installation.$489.98
- In stock
- In-store pickup
- Truck delivery
- GRKRugged Structural Screws RSS - 3/8" x 8" - 300/PkgEquipped with specially hardened steel, RSS structural screws provide optimal resistance to tensile, torque, and shear forces. They easily penetrate tough materials like hardwood, reducing cracks thanks to their sharp points and threads. Ideal for intensive work requiring durable fastening.$864.98
- Available online
- 7 to 10 day pickup
- GRKStructural Screws - RSS - 3/8" x 6" – 300/pkgMade from case-hardened steel, RSS structural screws provide exceptional tensile and torsional strength for superior clamping force. The washer-type head has an integrated edge with no sharp edges, while the Torx drive prevents stripping for stable insertion. The CEE Thread, low-torque W-Cut drive, and Zip-Tip self-tapping point enable quick penetration without pre-drilling, reducing the risk of splitting. The Climatek coating ensures corrosion protection, ideal for indoor and outdoor applications on treated wood. Load ratings are compliant with CSA 086-16 standards.$679.98
- Available online
- 7 to 10 day pickup
- Parcel delivery
- GRKConcrete Screws Caliburn XL - 19/64" X 3 1/2" - 25/PkgThe Caliburn XL concrete screws are specifically designed to provide a strong and durable hold in concrete and masonry surfaces. Their patented thread design facilitates insertion into hard materials, ensuring a secure installation. Perfect for heavy-duty fastening, they offer high resistance and exceptional durability, even in challenging environments. With their washer head, they provide superior holding power, meeting the needs of construction projects that require reinforced fastening.$79.98
- Available online
- 7 to 10 day pickup
- Parcel delivery
- GRKConcrete Screws Caliburn XL - 19/64" X 2 3/4" - 25/PkgThe Caliburn XL concrete screws are designed to provide a strong and durable hold in concrete and masonry. Thanks to their patented thread design, they easily penetrate hard materials, ensuring a secure installation. Ideal for heavy-duty fastening jobs, these screws offer high resistance and extended durability, even in the most demanding environments. Their washer head provides increased holding power, making them perfect for construction projects that require a solid hold.$72.98
- Available online
- 7 to 10 day pickup
- Parcel delivery
- GRKConcrete Screws Caliburn XL - 19/64" X 5" - 25/PkgCaliburn XL screws are ideal for strong fixings in concrete and masonry. Featuring a patented thread, they easily penetrate hard materials, ensuring a secure installation. Designed for heavy-duty fastening applications, these screws offer high resistance and exceptional durability, even in the most demanding conditions. Their washer head increases holding capacity, making them an ideal choice for projects that require reliable and solid fastening.$92.98
- Available online
- 7 to 10 day pickup
- Parcel delivery
FAQ on screws and anchors
What are hardware fasteners used for?
Hardware fasteners include all the components used to join, secure, or support materials — such as anchors, screws, bolts, and nuts. They’re essential for construction, renovation, and DIY projects of all sizes.
What are the most common types of mounting hardware?
Mounting hardware includes wall anchors, brackets, hooks, and screws. These items are used to install shelves, mirrors, cabinets, or any object that needs secure support on a wall or structure.
How do I choose the right anchor and screw combination?
Choose your anchor and screw based on the weight and surface type. For drywall, use plastic or toggle anchors; for concrete, use masonry anchors; and for wood, a standard wood screw may be enough without an anchor.





















