Sizes below M3 and high precision requirement for accurate equipments or devices , using a magnetic tool to pick up screw during operation and screw it up slowly . recommendatory material covers steel , stainless steel , brass and copper .

Product feature
1. Steel material with hot treatment .
2. Environmental protection , meet ROHS and REACH .
3. Small with high precision , M2X5 , tolerance 6g.
4. Blue zinc finish with 48 hours salty sprey testing .
5. Bright surface without any burrs or scratch .