Western Builders Supply 1 In. Bronze Round Washer Head Type 17 Construction Lag Screw
These construction lag screws are heat treated and hardened. They are stronger and more durable than ordinary lag screws. They have deep cutting threads for quick, easy driving and a sharp notched point for exact, quick starting with less “walking”. a built-on round washer head with smooth edges gives a professional finish.
Heat-treated hardened steel for high tensile strength and high shear strength
Triple layer ACQ compatible bronze coating for exterior or interior use
Built-in washer head for increased pull through strength
Type 17 tip for faster precise starts which eliminate “walking” and provides easier insertion without pre-drilling
Aggressive knurl enlarges hole to reduce splitting and drag to help draw lumber together