M5-0.8 x 50mm ISO 4762/DIN 912 Hex Drive A2-70 Stainless Steel Socket Cap Screw / THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 22.0 MILLIMETERS NOMINAL FASTENER LENGTH: 50.0 MILLIMETERS NOMINAL HEAD DIAMETER: 8.50 MILLIMETERS NOMINAL KEY LENGTH: 2.5 MILLIMETERS NOMINAL HEAD HEIGHT: 4.91 MILLIMETERS NOMINAL WIDTH BETWEEN FLATS: 4.020 MILLIMETERS MINIMUM AND 4.095 MILLIMETERS MAXIMUM INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: NSN 3810-016079674 NOMINAL THREAD DIAMETER: 5.0 MILLIMETERS PART NAME ASSIGNED BY CONTROLLING AGENCY: SOCKET HEAD SCREW CAP MATERIAL: STEEL CORROSION RESISTING OVERALL THREAD SERIES DESIGNATOR: M