FASTENERS / NUTS / HEAVY HEX JAM NUT Filters Grade GRADE 8 STEEL Your Results Showing 1 - 1 of 1 results. 1 HEX FINISHED JAM NUTASME B18.2.2 SAE J995PROOF LOAD 54K PSI COARSE THREADPROOF LOAD 48K PSI FINE THREAD Part Number Description Grade Finish Type 003-08750C-HVZ 7/8-9 HEX JAM NUT HEAVY ZINC STEEL ZINC STANDARD 1