Crown Bolt 11440 5/16 Inch x 2 Inch Hex-Head Stainless Steel Lag Screws, 25-Count Stainless steel 5/16 inch x 2 inch lag screws hex head For wood applications 5/16 inch body diameter and thread pitch 2-inch fastener length Stainless Steel Finish Offers Rust-Oleum Certified Rust Protection