National Nail Ledger Structural Screw, 5/16" X 5" Category_Hand Tools dual locking design with exterior

dual locking design with exterior key lock-separate interior locking mechanism

support frames

120V To 480V AC Voltage Range & 120V To 240V DC Voltage Range

100% active ingredients

Water Sense Certified To Conserve Water Without Sacrificing Performance

National Nail Ledger Structural Screw, 5/16" X 5" Category_Hand Tools dual locking design with exterior5 16 in. (7. 9mm) structural screw for deck substructure, deck posts, beams, handrails, landscape timbers, and more Replaces 1 2 in. (12. 7mm) lag screws Sharp point starts fast with no pre drilling Flat, washer style head provides stronger holding power and greater surface contact and finishes flush 3rd party tested for screw strength confirmation T 40 Star Drive provides more points of contact, reducing cam outs and limiting bit wear Available in 3