GRK 12225 5/16x4 Star Drive Washer Head Climatek Coated Steel RSS Rugged Structural Screws, 200/Box

Product Details

• Color: yellow
• Item Dimensions: 6.25 x 0.82 x 0.51 inches
• Item Weight: 2.4 ounces
• Number of Items: 200
• Unit Count: 200 Count
• Part Number: 12225
• Thread Coverage: Partially Threaded
• Fastener Size: 4 in.
• Size Name: 5/16" x 4"
• Item Diameter: 0.31 inches
• Number of Pieces: 200
• Outside Diameter: 0.31 inches
• Material Type: Steel
• Exterior Finish: Stainless Steel
• Metal Type: Alloy Steel
• Finish Types: Climatek
• Screw Head Style: Washer Head
• Head Type: Round
• Thread Style: Right Hand
• Drive System: Torx

About this item

• Heavy Duty Lag Screw Alternative: Eliminates pre-drilling in most woods with Zip-Tip technology. Installs 3x faster than traditional lag screws
• ESR-2442 Code Approved For Structural Applications: Engineered for professional-grade connections in heavy duty framing, multi-ply beams, and timber framing. Integrated washer head delivers maximum clamping force for zero-gap joints in LVL, LSL, and engineered lumber.
• Advanced Corrosion Protection: Rust resistant Climatek coating provides exceptional durability for outdoor use and in pressure-treated lumber applications
• W-cut Thread Design: Reduces installation torque by 40% for smoother, faster driving. CEE threads minimize splitting in dense hardwoods, engineered lumber, and laminated beams.
• Precision Engineering: Star/Torx drive recess with 6 points of contact prevents stripping and minimizes wobble between screws and bits.