5/16"-18 Grade 5 Serrated Hex Flange Screws Frame Bolts Zinc (Pick Length & Qty)

Grade 5 Coarse Thread Serrated Hex Flange Bolts. Wrench Size: 1/2". HTML Editor - Full Version. Protective zinc finish to help prevent rust! Finish: Zinc Plated. These are not second quality fasteners that were previously rejected or rescued from a scrap yard.