Hex
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1/4" (6)
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- 1/4" Hex ( .250" )
- 1/2 Hard Temper
- ASTM B16
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1-1/4 (10)
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- 1-1/4" Hex (1.250" )
- 1/2 Hard Temper
- ASTM B16
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1-3/8 (8)
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- 1-3/8" Hex (1.375" )
- 1/2 Hard Temper
- ASTM B16