Bolts are among the most fundamental components of mechanical fasteners and are used together with nuts to securely and firmly join two or more parts. They are commonly manufactured from carbon steel, stainless steel, alloy steel, brass, or special materials. Produced in various sizes under both metric and inch measurement systems, bolts are manufactured in accordance with international standards such as DIN 933, DIN 931, ISO 4014, and ISO 4017. They come in different types, including hex head, socket head (Allen), countersunk, flanged, and special head bolts. With their high strength classes (8.8, 10.9, 12.9, etc.), they play a critical role in the heavy industry, machinery manufacturing, and construction sectors.
Applications:
Bolts are widely used in the construction sector for connecting steel structures, in the automotive industry for engine and body assembly, in machinery manufacturing for securely fastening components, and in the energy sector for infrastructure installations. In structures requiring high strength—such as bridges, dams, and rail systems—high-strength bolts are preferred. In the furniture and home appliance industries, smaller-diameter bolts with aesthetic designs are commonly used.
