Hex bolts are hexagonal head fasteners with machine threads. They are commonly used for machinery and construction projects, both residential and commercial. Fully threaded sizes provide excellent grip strength. Partially threaded sizes help where shear resistance is important. Secure with a corresponding nut or use in a tapped (threaded) hole. *Hex "tap" bolts have a hex head and smooth shoulder area beyond the standard amount of threading. *Stainless steel offers superior rust prevention and bright finish. *Install with a wrench or drill. *Commonly used in construction, agricultural, and automotive applications. *To be used in fully threaded holes. OEM 1. according to customer requirements to modify the size of the appearance. 2. Selection of materials (to meet customer performance requirements). 3. Optimize product details according to experience and technology (according to customer requirements). 4. Make suggestions on surface treatment to meet the requirements of appearance and corrosion resistance. 5. choose the best process sample for testing. 6.Our products are packaged based on the needs of customers: marine construction, boat builders, contractors, retailers, watermaker, hardware and industrial suppliers. 7.Our business can provide you with service from OEM to shipping! ZHONGJIAN METAL MATERIALS products are known for their consistent quality and availability as well as for helping structures resist high winds, hurricanes and seismic forces.