Find a huge selection of M20-M100 3/4-4” DIN933 DIN931 High Quaity Stainless Steel A2-70 A4-80 Heavy Hex Bolt with Nut from China at Gangtong Zheli. Provide professional after-sales service and the right price, looking forward to cooperation. Hex bolts can be categorized into two main types: metric hex bolts and ASME hex bolts. Bolts, in general, are a type of threaded fastener with an external male thread. It's important to note that bolts are closely related to, and are sometimes mistaken for, screws. A hex cap screw, on the other hand, is a specific type of cap screw that features a hexagonal head, designed to be tightened or loosened using a wrench or spanner. An ASME B18.2.1 compliant cap screw adheres to slightly tighter tolerances compared to a standard hex bolt, particularly in terms of head height and shank length. The difference in tolerance specifications between the two allows an ASME B18.2.1 hex cap screw to always fit in places where a hex bolt is used. However, a hex bolt might be slightly oversized and unsuitable for use where a hex cap screw is designed to be installed. This distinction is crucial in various applications to ensure a precise and secure fit.

M20-M100 3/4-4” DIN933 DIN931 High Quaity Stainless Steel A2-70 A4-80 Heavy Hex Bolt with Nut

Application

Environmental protection equipment, medical equipment, communications equipment, electric power facilities, electronic products, food machinery, petrochemical industry, ship assembly, pump valve, pipe, building curtain wall, open places, etc.