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ASTM A307
ASTM A563
SAE J995
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1-3/8"-6 UNC Gr.2 Hex Slotted Nut
# 132.137
1-3/8"-6 UNC Gr.2 Hex Nut
# 078.137
1-3/8"-6 UNC Gr.2 Hex JAM Nut
# 121.137
1-3/8"-6 UNC A563 Gr.A HVY Hex Nut HDG
# 119.137
1-3/8"-6 UNC (NE) Nylon L/N
# 149.137
1-3/8"-6 UNC A563 Gr.A HVY Hex Nut
# 108.137
1-3/8"-6 x 144" UNC Gr.A THRD ROD
# 533.137
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1-3/8"-6 UNC Gr.2 Hex Slotted Nut
1-3/8"-6 UNC Gr.2 Hex Nut
1-3/8"-6 UNC Gr.2 Hex JAM Nut
1-3/8"-6 UNC A563 Gr.A HVY Hex Nut HDG
1-3/8"-6 UNC (NE) Nylon L/N1-3/8"-6 UNC A563 Gr.A HVY Hex Nut
1-3/8"-6 x 144" UNC Gr.A THRD ROD 
1-3/8"