APPLY TO - Hex head bolts can be widely used in home repair. Bolts for joining wood, boards, kitchen worktops, cabinets, cupboards, and a variety of other DIY project.DESIGN - Hexagon bolts are fully threaded. Threads are well-machined and accurately cut. Sharp, smooth, speeding up the fastening process in many applications, meeting all demands.ADVANTAGE - Our hex bolts are made of carbon steel, with wear resistance, strong and durable. The surface treatment is black oxidation to improve the corrosion resistance of carbon steel bolts.