M4-0.7 x 16mm ISO 4762/DIN 912 Hex Drive Class 12.9 Zinc Finish Alloy Steel Socket Cap Screw / FASTENER LENGTH: 16.0 MILLIMETERS NOMINAL HEAD STYLE: C66 KNURLED NO. 1 INTERNAL DRIVE STYLE: D5 HEXAGON NOMINAL THREAD DIAMETER: 4.0 MILLIMETERS WIDTH ACROSS FLATS: 3.0 MILLIMETERS NOMINAL THREAD PITCH IN MILLIMETERS: 0.7 PART NAME ASSIGNED BY CONTROLLING AGENCY: SOCKET CAP SCREW SPECIAL FEATURES: SPECIFICATION ISO 4762/DIN 912 MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL THREAD SERIES DESIGNATOR: ISO M