Hillman 812557 Flat Head Carriage Bolts, Galvanized, 5/16" x 4", 50-Count SpecialDiscount Excellent resistance to sunlight

Excellent resistance to sunlight

Low dusting & consistent uniform weight

direct even wind-driven rain away from the unit

Combination  round head

Hillman 812557 Flat Head Carriage Bolts, Galvanized, 5/16" x 4", 50-Count SpecialDiscount Excellent resistance to sunlightCarriage 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. Length: 4" Diameter: 5 16" Finish: Galvanized Designed to fasten a