Dowel pins are locating pins used to fix the relative position between parts. It is an important auxiliary part when combined processing and assembly. Used to fix the relative position between parts. It is an important auxiliary part when combined processing and assembly. Dowel pins are mostly made of high-quality carbon structural steel as raw materials.

Under normal circumstances, the materials are mostly C35 and C45, but heat treatment is required. Bearing steel is used for high-strength requirements, and 65Mn is used for elastic dowel pins.

Dowel pins have simple structure, good neutrality, high bearing capacity, good performance under variable load and impact, but require high machining precision of mating surfaces. The disassembly force is large, and the mating surface will be scratched, so it is a non-detachable connection. When the interference is small or hydraulic assembly and disassembly are adopted, the connection is also detachable.

Dowel pins are fixed in the holes by interference to fix parts, transmit power, or serve as positioning parts.
Dowel pins are mostly made of high-quality carbon structural steel as raw materials.

Under normal circumstances, the material is mostly C35 and C45, but heat treatment is required. Bearing steel is selected under high strength requirements.