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1/2"-13 UNC A563 Gr.C HVY Hex Nut5/8"-11 UNC A563 Gr.C HVY Hex Nut3/4"-10 UNC A563 Gr.C HVY Hex Nut (NORTH AMERICAN)3/4"-10 UNC A563 Gr.C HVY Hex Nut7/8"-9 UNC A563 Gr.C HVY Hex Nut1"-8 UNC A563 Gr.C HVY Hex Nut1-1/8"-7 UNC A563 Gr.C HVY Hex Nut
1-1/8"-7 UNC Gr.C (Top-Lock) All Metal L/N 1-1/4"-7 UNC Gr.C (Top-Lock) All Metal L/N 1-1/4"-7 UNC A563 Gr.C HVY Hex Nut1-3/8"-6 UNC Gr.C (Top-Lock) All Metal L/N 1-1/2"-6 UNC Gr.C (Top-Lock) All Metal L/N 1-3/4"-5 UNC Gr.C (Top-Lock) All Metal L/N 2"-4-1/2 UNC Gr.C (Top-Lock) All Metal L/N 
Coarse