Spax PowerLags 5/16 In. x 3-1/2 In. Washer Head Exterior Structure Screw (250 Ct.) Crystal Blue Made from minimally processed whole-food

Made from minimally processed whole-food with no chemicals or additives

Male fitting acts as a pipe coupling or snaps to any other snap-lock fitting

Constructed from durable metal

and adjustable wheel for ultimate performance

Fires 18 Ga

Spax PowerLags 5/16 In. x 3-1/2 In. Washer Head Exterior Structure Screw (250 Ct.) Crystal Blue Made from minimally processed whole-foodSpax PowerLags Screws have a washer head with T Star Drive and HCR (High Corrosion Resistant) exterior coating. Provides a new level of fastening efficiency and reliability to construction. Engineered specifically for demanding wood to wood structural applications, PowerLags feature patented thread serrations that eliminate pre drilling and dramatically increase installation speed requiring up to 40% less driving torque to increase installation speed.