M12-1.75 DIN 934 Zinc Finish Steel Class 8 Hex Nut / THREAD CLASS: 3A THREAD DIRECTION: RIGHT-HAND NUT STYLE: A12 HEXAGON NUT HEIGHT: 9.64 INCHES MINIMUM AND 10.00 INCHES MAXIMUM WIDTH ACROSS FLATS: 18.67 INCHES MINIMUM AND 19.00 INCHES MAXIMUM THREAD SERIES: UN THREAD QUANTITY PER INCH: 12 HARDNESS RATING: 30.0 ROCKWELL C NOMINAL NOMINAL THREAD SIZE: 1.75 INCHES BEARING SURFACE TYPE: WASHER FACED PART NAME ASSIGNED BY CONTROLLING AGENCY: NAVY SPECIAL PROJECT MATERIAL: STEEL OVERALL