Item No.: COS3~COS30,COS3L~COS30LType: Metric Rod ends Ball material: GCr15/AISI52100 steel, heat treated, HRC58-64, precision ground, polished. Body material: Carbon steel, zinc plated, chromate treated. Rass material: Brass, PTFE composite bonded to I.D. of race Thread: Male, 6g, right or left hand thread. Sliding contact surface: Steel/PTFE composite Feature: Low noise, long life, high precision, maintenance-free Certification: IATF16949/ISO14001/ISO18001 Phone: +86-592-580 8851 / +86-592-580 7618Email: sales@ldk-bearing.com ; benjamin@ldk-bearings.com