Powerlag 5/16 In. In. X 4 In. L T-40 Washer Head Serrated Structural Screws

Spax PowerLags are heavy-duty structural screws engineered for demanding wood-to-wood connections in both interior and exterior applications. These fasteners feature a washer head design that provides superior load distribution and stability in ledgers, beams, and other critical structural joints. The patented thread serrations eliminate the need for pre-drilling, significantly increasing installation speed.

With excellent corrosion resistance, these screws perform reliably in treated lumber and outdoor environments. The T-40 Star Drive allows efficient torque transfer. Each screw is stamped with its length for quick on-site identification. These fasteners are suitable for both indoor and outdoor use, providing versatility for a wide range of construction projects.

Features and Benefits

• Washer Head Design: Provides a larger bearing surface for superior load distribution and secure connections in structural applications.
• Patented Thread Serrations: Eliminate the need for pre-drilling, speeding up installation and reducing driving torque requirements.
• Corrosion Resistance: Reliable performance in treated lumber and outdoor environments for long-lasting durability.
• T-40 Star Drive: Delivers improved torque transfer compared to standard drives.
• Length-Stamped Head: Eliminates measuring on-site and speeds material verification during inspections.
• Versatile Application: Designed for both indoor and outdoor structural wood-to-wood connections.

Specifications

• Brand: Spax
• Model: 45818208010043
• Size: 5/16 In. diameter x 4 In. length
• Drive Style: T-40 Star Drive
• Head Style: Washer head
• Pack Quantity: 12 screws
• Application: Wood-to-wood structural fastening