... 1. Standard: DIN,ISO,JIS,AISI2. Size M2-M563. Material: Steel, SS, BrassThread size M Pcs./cartonM2 248M3 85M4 42M5 26M6 ... NINGBO LONGTENG METAL MANUFATURING CO., LTD professionally manufactures precious shaft, pins, shaft, bushing,nuts, bolts, screws accordance with the standards of ...