1)Lead free copper material. 2)ISO9001, ISO14001, ISO13485. 3)Standard parts. 1. ... parts2) Min Tolerance: per requirement.3) Surface treatment: Black; Zinc, Nickel, powder coating, sand blasting etc4) Certification: ISO16949, ISO9001, ISO14001, ISO134855 ... , ASTM, JIS, BS, DIN, etc.6) Item Details:1)Material: Lead free copper2)Tolerance:±0.05mm3)Dimension:Φ5.0mm*M3*2.75mm ...