Hillman 240192 3/8-16X6 Carriage Bolt, 3/8 x 6-Inch

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