M4-0.7 x 30mm ISO 4762/DIN 912 Hex Drive Class 8.8 Zinc Finish Steel Socket Cap Screw / THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 20.0 MILLIMETERS NOMINAL FASTENER LENGTH: 30.0 MILLIMETERS NOMINAL HEAD STYLE: C44 FILLISTER HEAD DIAMETER: 6.78 MILLIMETERS MINIMUM AND 7.22 MILLIMETERS MAXIMUM HEAD HEIGHT: 3.82 MILLIMETERS MINIMUM AND 4.00 MILLIMETERS MAXIMUM INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: 2320-01-534-1887 NOMINAL THREAD DIAMETER: 4.0 MILLIMETERS WIDTH ACROSS FLATS: 3.02 MILLIMETERS MINIMUM AND 3.08 MILLIMETERS MAXIMUM THREAD PITCH IN MILLIMETERS: 30.0 PART NAME ASSIGNED BY CONTROLLING AGENCY: SCR,CAP,SOC,TAB C8.8 ZP MATERIAL: STEEL PROPERTY CLASS 8.8 OVERALL MATERIAL DOCUMENT AND CLASSIFICATION: ISO 898-1 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL SURFACE TREATMENT: ZINC OVERALL SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: FM100: PL20 TYPE III,GRADE 2,CL A MFR REF SINGLE TREATMENT RESPONSE OVERALL THREAD SERIES DESIGNATOR: M