What is a hex bolt?

Hex bolts are fasteners consisting of a head and a screw, which are usually used in conjunction with nuts to connect two parts with through holes. The head of a Hex bolt is hexagonal and is designed to be turned with a wrench. It is divided into two types: external Hex bolts and internal Hex bolts. The head edge of the external Hex bolt is hexagonal, while the head of the internal Hex bolt is round on the outside and has a recessed hexagon in the middle.

Hex bolts are divided into iron bolts and stainless steel bolts according to their materials. Common grades include 4.8, 8.8 and 12.9. According to the force mode of the connection and the shape of the head, Hex bolts can be divided into ordinary and reamed holes. There are many head shapes, such as hexagonal heads, round heads, square heads, etc.

Hex bolts are widely used in mechanical equipment fastening. According to different use occasions and needs, they are divided into ordinary bolts and high-strength bolts. Ordinary bolts are often used for temporary connections and connections that need to be disassembled, while high-strength bolts are used for permanent connections and are often used for connecting the main components of building structures.Hex bolts are suitable for connecting large equipment and places subject to impact, vibration or alternating loads, while Hex bolts are suitable for small equipment, mechanical connections with high requirements for aesthetics and precision, and narrow assembly occasions.