Carriage 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 galvanized finish provides optimal rust prevention but can be chalky in appearance.
| Finish | : | Galvanized |
| Head Diameter | : | 3/8 in |
| Head Type | : | Flat |
| Neck Type | : | Square |
| Overall Length | : | 6 in |
| Thread Type | : | Coarse |