HILLMAN 1/2 in. X 5-1/2 in. L Zinc-Plated Steel Carriage Bolt 25 pk tier-discount-11 Length: 3-3/4 in

Length: 3-3/4 in

they're also used to attach metal to wood

Manufacturer Part No: 220307

storm shutters

Manufacturer Part No: 200078

HILLMAN 1/2 in. X 5-1/2 in. L Zinc-Plated Steel Carriage Bolt 25 pk tier-discount-11 Length: 3-3/4 inCarriage bolts are designed to fasten a wooden face to either a wood or metal frame. Its flat head is designed to eliminate the need for a washer and provide a semi flush finish to applications. The square underside of the head is self locking to eliminate spinning and the need for a driving tool. The zinc plating is rust resistant and provides a beautiful, consistent finish, but, may not work for all exterior projects. * UPC: 008236087536