Description
Thread Diameter: 1/2"; Screw Length: 5" (excluding the head height); Head Type: Hex Head External Hex Drive: 3/4"; Package: 4 PCS Material: 304 stainless steel (A2-70) with special black coated treatments, greater strength and better corrosion resistance performance than regular stainless steel or zinc plated fasteners. No scratches, No Burrs. Excellent appearance. Typically used for securing wood in heavier duty applications. To prevent splitting, drill a pilot hole slightly smaller than the screw. Lag bolts, also called lag screws, generally require flat washers to evenly distribute the pressure from the head. You could find the matched flat washers in our store.