Dewamarket 5/16-18 x 2 1/2 (FT) Coarse Thread Grade 8 Carriage Bolt Alloy Steel Thermal Black Oxide

Part #: 0000-181808. Buy as few as 100 pcs. Discounts on larger quantities. PRODUCT SPECIFICATIONS Part #: 0000-181808 Fastener Type: Carriage Bolt Size Description: 5/16-18 x 2 1/2 (FT) Diameter/Nominal Size: 5/16 Length: 2 1/2 Head Diameter: 0.688-0.719″ Head Height: 0.156-0.176″ Neck Across Square/Diameter: 0.307-0.324″ Neck Height: 0.156-0.187″ Thread Pitch: 18 Thread Pitch Type: Coarse Thread Direction: Right Thread Coverage: Full System of Measurement: Inch Grade: 8 Material: Alloy Steel Finish: Thermal Black Oxide Average Piece Weight: 0.0584000 lbs. Carriage bolts are Ideal for use in square holes in wood-to-wood and wood-to-metal fastening; bolt has a square neck that prevents it from turning once screwed in. When trying to determine the length of the item, measure from just under the head of the bolt.