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2-1/4"-4-1/2 UNC Gr.2 Hex Nut PLTD
2-1/4"-12 UNF Gr.2 HVY Hex JAM Nut
2-1/4"-4-1/2 UNC Gr.2 Hex Nut2-1/4"-12 UNF Gr.2 Hex Nut2-1/4"-4-1/2 UNC A563 Gr.A HVY Hex Nut
2-1/4"-4-1/2 UNC A563 Gr.A HVY Hex Nut HDG
2-1/4"-4-1/2 x 144" UNC Gr.A THRD ROD 
2-1/4"