GRK Fasteners Screws, Rugged Structural
100 screws
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Product Details
5/16 inches x 3-1/8 inches. T-30 bit included. Speedy lag bolt alternative with immense drawing power! AC257 treated lumber approved. IBC/IRC code compliant ESR No. 2442. Zero stripping: Recessed star drive. No splitting: CEE Thread. Low torque: W-cut thread. No pre-drilling: Engineered Zip-Tip. Star drive head has 6 point of contact to eliminate strip-out. CEE Thread: Enlarges hole to reduce splitting and allows material to settle neatly. Patented W-Cut thread design and Zip-Tip easily penetrates most material without drilling! Climatek all weather coating. Stronger than 1/2 inches diameter lag screws & twice as fast! Suggested uses: Lag screw alternative; Ledger board; Carrying beam; Deck posts; Playground equipment; Stair rails. RSS Shear Test Results: Fastener: 5/16 inches x 3-1/8 inches (Avg. Ultimate Load: 840 lbf); Fastener: 5/16 inches x 4 inches (Avg. Ultimate Load: 1196 lbf); Fastener: 5/16 inches x 5-1/8 inches (Avg. Ultimate Load: 1314 lbf); Fastener: 5/16 inches x 6 inches (Avg. Ultimate Load: 1326 lbf). Please note the above stated values are ultimate load, tested after ASTM D 1761, Wood to Wood connection; For construction design purposes an applicable safety margin should be applied; For safety factor requirements in your area contact your local building official, architect or engineer; Test conducted in wood with a specific gravity 0.42; Climatek coated screws evaluated with 0.40 pcf ACQ-D and 0.40 pcf CA-B. Limited lifetime guarantee. Warranty: GRK warrants that this product is free from defects in material and workmanship. GRKs' sole liability for any breach of this warranty shall be to replace this product or refund the purchase price. GRK shall not be liable for any fastening failure due to improper installation or defective substrate material. www.grkfasteners.com. Made in Taiwan.Nutrition Facts
Warnings
Warning: Failure to wear safety glasses with side shields can result in serious personal injury. Always wear ANSI compliant eye protection.Manufacturer
ILLINOIS TOOL WORKS
955 National Parkway Suite 95500 Schaumburg, IL 60173
UPC
00772691122216