Dock Hardware Galvanized 3/8 X 3-1/2 50 Pack Galvanized Lag Screw Kit Grade 685579 Pilot hole recommended for installation Hot-Dip Galvanized for superior rust resistance These lag bolts are made of Grade A zinc plated steel with a galvanized finish which is perfect for outdoor applications such as wooden fences or deck... The 1 1/4 Wood Plug is a round peg with flat ends, designed to fit into a pre-drilled hole to conceal the screw used in mounting. Tv Mount Screws Kit 3/8 X 5 (50 Pack) Lag Screw Kit, 50 Screws And Kit includes 50 Grade 307A lag bolts and 50 USS flat washers (outside diameter 1) The Hot Dipped Galvanized Lag Screw used inside the product is covered with the wooden plug, providing both strength and enhanced protection. Each 3/8 inch diameter by 3 inch long screw comes with a matching USS flat washer (that's 1 inch outside diameter for those keeping track). The hot-dip... Once installed with glue, the plug follows the natural direction of the wood grain, ensuring a seamless appearance. This kit provides hardware for securely installing our wood products.