Product parameters: threaded steel ball (blind hole)
Product Category: Hardware Machinery
Product material: stainless steel
Surface treatment: primary color bright polished
Specifications: diameter 5mm-50mm multi-standard thread

Recommended methods for testing stainless steel materials:
1. Spectrometer detection (more professional)
2. Stainless steel potion detection, drop detection liquid on the surface of the material to observe the color change;
3. Wash the steel balls with water and store them in the open air to observe the surface changes (iron balls, carbon steel balls, bearing steel balls will begin to rust the next day after washing, and the 304 stainless steel material will not change)

• According to your choice.
• Other accessories are not included.