Hillman 240321 Carriage Bolt, 1/2 x 4-1/2-Inch, Steel, Zinc-Plated, Silver, 25-Pack

Carriage Bolts are designed to fasten a wooden face to either wood or metal | Flat head provides a semi-flush finish to applications | The heads is designed to eliminate the need for a washer | Square underside of the head is self locking to eliminate the need for a driving tool | Zinc Finish provides a beautiful, consistent finish