... ISO7380=ASME B18.3)Hexagon Socket Head Shoulder Screws (ISO7378=ASME B18.3)Hex Socket Set Screws (DIN913-DIN916/ISO4026- ... alloyFinishPlating, Oxiding, Blasting, Painting, Anodizing, Heat treatment, AlodineTolerancehexagon socket screws: +0.0004/-0, +0/-0.0004 inchStandard DIN912,913 ... the assembly of simple revolving parts.Size list:Hex Socket Set Screws (DIN913-DIN916/ISO4026-4029/JISB1177/ASME B18. ...