PowerLags Series Lag Screw, 5/16 in Thread, 5 in L, Partial Thread, Washer Head, Star Drive, HCR SPAX PowerLags® require no pre-drilling and drive faster and easier than conventional lags and other structural lag screws. We offer the largest selection of code recognized structural wood-to-wood fasteners in the industry. Featuring SPAX patented thread technology and HCR high corrosion-resistant coating, our T-Star washer head and PowerLags® collection can be used for interior or exterior applications, including treated lumber.

Item Features

• Patented thread serrations require up to 40% less driving torque to increase installation speed while helping prevent cracking in logs
• Built-on washer head designs eliminate the need and extra cost of a separate washer
• Fastener length stamp on the head provides convenient identification without measuring and aids on-site inspections
• No pre-drilling required
• Grade 5 durability

Item Specifications

• Brand Name: SPAX
• Manufacturer Name: Altenloh, Brinck & Co
• Manufacturer Number: 4581820801275

Item Documentation

• Catalog
• Specification Sheet
• Video Link

Product Certification & Qualifications

• For multi-ply LVL beam assembly, multi-ply girder truss assembly, exterior treated lumber pergolas and gazebos, landscaping timber, outdoor furniture, exterior fencing posts, exterior out buildings and deck ledger to residential band joist attachment