7H plug gauges are carefully designed by ZXGLW factory and passed our strict quality inspection, providing a good solution for your precise measurement needs. Our products support customization, complete specifications, and high cost performance. Even if you only need one piece, you can still get wholesale price. Welcome all new and old customers.
7H plug gauges and thread ring gauges cannot be screwed together. Plug gauges below M3 are pointed and above M3 are flat.
The thread plug gauge has a tooth profile angle of 60 degrees. It is finely ground by a high-precision professional thread machine and fully inspected by high-precision testing equipment to ensure accurate measurement. The measuring head is made of GR15 bearing steel and has a hardness of 58-65HPC after strict heat treatment, which has high hardenability.
The product specifications are laser engraved, which is beautiful and generous. The handle is hexagonal, beautiful and practical, and the surface is frosted, which is beautiful and non-slip.
For users with strict precision requirements, we can use the metrology method. After purchase, users need to send it to a third party (a testing agency with testing qualifications) for testing. It can be used after passing the test.
Material: Bearing steel (GCr15)
Size range: Thread plug gauges are available in various sizes to suit different hole diameters. We can also undertake non-standard parts.