Hex Head Bolt Full Thread

Hexagon screws, in fact, there are many kinds of names, such as can be called external hexagon bolts, such as external hexagon screws. It can also be called a hexagon bolt. It's all the same meaning. It's just a personal habit of calling it different. Ordinary bolts are divided into three types: A, B and C. The first two are refined screws, less used. Generally speaking, ordinary screws refer to Class C ordinary screws.
The external hexagon screw is a matching nut for fastening and connecting two connected parts and components with through holes. Hexagon screws are more commonly used bolts. There are a lot of grade A and grade B external hexagons, which are more important. Moreover, it is used more frequently in occasions with high assembly accuracy requirements and large impact, vibration or cross-rate load. The C- level external 66 screws are used for occasions where the surface is relatively rough and the assembly accuracy is not high.
The thread on the external hexagon screw is generally the ordinary thread of the fine tooth, and the external hexagon screw with the ordinary thread of the winding tooth has good self-pinning. It is mainly used for thin-walled parts or occasions subjected to impact, vibration or alternating load. Generally, external hexagon screws are made with partial threads. Full-threaded external hexagon screws are mainly used for external hexagon longitude with short nominal length and occasions requiring longer threads. External hexagon screws with holes are used where external hexagon screws are required to be locked. External hexagon screws with reamed holes can accurately fix the phase of the connected parts to the position. And can be subjected to shear and extrusion generated by the die force.
External hexagon screws, in fact, there are many kinds of names, such as can be called external hexagon screws, can also be called external hexagon bolts. It's all the same meaning. It's just a personal habit of calling it different.
1. Ordinary bolts are divided into A, B and C. The first two are refined bolts, less used. Generally speaking, ordinary bolts refer to Class C ordinary bolts.
2. In some temporary connections and connections that need to be disassembled, common C- grade bolts are commonly used. Common bolts commonly used in building structures are M16, M20 and M24. Some mechanical industry crude bolt diameter may be relatively large, special purpose.

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