Lag Screw 1/4'' X 2'' L 12-PK Washer-High Corrosion-Resistant Carbon-Steel / SPAX PowerLags 45718207005043 The SPAX PowerLags 1/4" x 2" washer-head lag screw is a high-strength, corrosion-resistant fastener engineered for demanding outdoor and structural applications such as deck framing, fence post anchoring, and heavy timber connections. Made from hardened carbon steel with a proprietary high-corrosion-resistant black finish, it resists rust, weathering, and chemical exposure ? making it ideal for use in coastal, humid, or pressure-treated wood environments. The integrated 0.545" hex washer head distributes load evenly across the surface, reducing wood splitting and eliminating the need for separate washers. Fully threaded with serrated cutting edges, it bites aggressively into wood for superior holding power and self-tapping performance ? no pre-drilling required in most softwoods. The external hex drive ensures maximum torque transfer and minimizes cam-out during installation. Features - High-corrosion-resistant black coating exceeds ASTM B117 salt-spray standards for long-term durability - Washer head design spreads load to prevent wood splitting and eliminates need for separate washers - Fully threaded, serrated shank provides superior grip and self-tapping capability in hardwoods and pressure-treated lumber - External hex drive allows powerful, controlled driving with standard socket or impact driver - 1/4" diameter and 2" length optimized for structural connections in decking, fencing, and timber framing - No pre-drilling needed in softwoods ? reduces installation time and labor - Meets or exceeds Grade 5 strength requirements for structural integrity under heavy load - Coating resists fading, chipping, and degradation from UV exposure and moisture - Designed for use with pressure-treated wood, cedar, redwood, and composite decking materials - Clamshell packaging protects screws during transport and enables easy dispensing on job sites - Compliant with ICC-ES and ICC-ESR standards for structural fasteners Specifications - Brand Name: SPAX - Sub Brand: PowerLags - Model Number: 45718207005043 - Product Type: Lag Screw - Material: Carbon Steel - Finish: High-Corrosion Resistant (Black) - Diameter: 1/4 in - Length: 2 in - Head Type: Washer Head - Head Diameter: 0.545 in - Head Height: 0.210 in - Drive Style: External Hex - Thread Style: Fully Threaded - Thread Length: 1.770 in - Thread Type: Serrated - Grade: 5 - Quantity: 12 pcs per pack - Weight: 5.6 oz (0.35 lb) - Packaging: Clamshell - Country of Origin: Germany - UPC: 712216025912 - GTIN: 00712216025912 - Manufacturer Part No: 45718207005043 - Manufacturer: SPAX International Product Application The SPAX PowerLags 1/4" x 2" lag screw is used by professional builders, deck contractors, and serious DIYers installing structural connections in outdoor wood projects ? including deck joists, railing posts, fence frames, and timber-to-concrete anchors. Its corrosion-resistant coating and aggressive serrated threading make it the preferred fastener for pressure-treated lumber, cedar, and redwood, where traditional screws fail prematurely due to moisture and chemical exposure. The integrated washer head ensures clean, flush seating without splitting, while the hex drive enables rapid, torque-efficient installation with standard power tools. Professionals trust SPAX for consistent performance, code compliance, and long-term reliability ? delivering the quiet confidence that every connection remains secure, stable, and weatherproof for the life of the structure.