M8.4 X 17.5 X 1.9 FLAT WASHER ZNAB
- 1050 STEEL HRC 26-32 ZNAB = ZINC NICKEL ALLOY W/TRIVALENT BLACK CHROMATE AND TOP COAT ASTM B841-18, GRADE 8, TYPE DN/E 220 HRS TO ALLOY CORROSION 840 HRS TO BASE METAL CORROSION PRINT # 589017000 PG 3 REV ZT PN # 503192494