Hillman 3/8 In. x 3-1/2 In. Grade 2 Zinc Carriage Bolt (50 Ct.)

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 zinc plating is rust resistant and provides a beautiful, consistent finish, but, may not work for all exterior projects.

• Smooth, domed head offers a semi-flush, low-profile finish to applications where spacing is tight
• Zinc plating is rust resistant
• Square shoulder locks into material, eliminating the need for a flat washer