M16-2.0 x 120mm DIN 931 Class 10.9 Zinc Finish Hex Cap Screw / THREAD CLASS: 6G THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 38.0 MILLIMETERS NOMINAL FASTENER LENGTH: 119.7 MILLIMETERS MINIMUM AND 120.7 MILLIMETERS MAXIMUM HEAD STYLE: C1 HEXAGON HEAD HEIGHT: 9.8 MILLIMETERS MINIMUM AND 10.2 MILLIMETERS MAXIMUM WIDTH BETWEEN FLATS: 23.7 MILLIMETERS MINIMUM AND 24.0 MILLIMETERS MAXIMUM NOMINAL THREAD DIAMETER: 16.0 INCHES THREAD PITCH IN MILLIMETERS: 2.0 EXTERNAL THREAD TOLERANCE CLASS: 6G PART NAME ASSIGNED BY CONTROLLING AGENCY: HEXAGON CAP SCREW MATERIAL: STEEL PROPERTY CLASS 10.9 OVERALL SURFACE TREATMENT: ZINC OVERALL SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM F1941M, FE/ZN ASSN STD SINGLE TREATMENT RESPONSE OVERALL THREAD SERIES DESIGNATOR: M