Hex Coupling Nuts (domestic)

Coupling Nuts, also known as Extension Nuts, are threaded fastener for joining two male threaded objects, most commonly threaded rod, but also pipes. The outside of the coupling nut is usually a hex so it can be gripped by a wrench.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
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YANKEENHCoupling NutGrade 2HPlain2-4 1/2 x 62-4.5x6 long coupling nut 2h heavy-usa made125
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SunPackFLCoupling NutSteelZinc/Clear3/4-10coupling nut domestic12
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SunPackFLCoupling NutSteelZinc/Clear7/8-9coupling nut domestic3
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B & K FASTPACoupling NutSteelBlack Oxide3/4-10 x 2 1/83/4-10 x 2 1/8 heavy hex coupling nuts black domestic with certs b18.2.232
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THRDFASTALCoupling NutGrade AGalvanized1-8 x 3a563 gr a hex coupling nut hdg domestic b18.2.240
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Big RedOKCoupling NutGrade 2HZinc/Clear1/2-13 x 1 7/81/2-13 x 1 3/4-7/8 hex a194 2h hex coupling nuts zinc plated (usa)150
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MasFasCorpNVCoupling NutSteelZinc/Clear5/8-11heavy hex coupling nut domesticinquire
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Valley NuWACoupling NutGrade DHPlain5/8-11 x 31 1/8 a563 dh hvy hex cplng nut pl usa2
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Valley NuWACoupling NutGrade DHGalvanized7/8-9 x 3 x 11/2af a563 dh hvy hex coupling nut hdg usa50
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Valley NuWACoupling NutGrade DHGalvanized1-8 x 6 x 1 5/8a563 dh hvy hex coupling nut hdg usa4
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Valley NuWACoupling NutGrade AGalvanized1/2-13 x 1 3/4 x 7/8af hdg usa hvy hex coupling nut a563 gra10
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Valley NuWACoupling NutGrade DHGalvanized3/4-10 x 2 1/4 x 11/4 a563 dh hvy hex cplng nut hdg usa16
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Valley NuWACoupling NutGrade DHGalvanized1-8 x 3 x 1 5/8a563 grdh hvy hex coupling nut hdg usa73
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Valley NuWACoupling NutGrade DHGalvanized1 1/8-7 x 3 3/8 x 2a563 grdh hvy hex cplng nut hdg usa4
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Valley NuWACoupling NutGrade AGalvanized1 1/2-6 x 4 1/2 x 21/2 gra hvy hex cplng nut hdg usa2
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Valley NuWACoupling NutGrade 2HGalvanized3/4-10 x 21 1/4 a194 2h hvy hex cplng nut hdg usa1
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Valley NuWACoupling NutGrade DHGalvanized1 3/4-5 x 5 1/2 x 3a563 dh hvy hex coupling nut hdg usa3
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Valley NuWACoupling NutGrade DHGalvanized1 1/4-7 x 3 3/4 x 2af a563 dh hvy hex coupling nut hdg usa1
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Valley NuWACoupling NutGrade DHPlain1-8 x 3 x 1 5/8a563 grdh hvy hex coupling nut usa1
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Valley NuWACoupling NutSteelGalvanized3/4-10 x 41 1/4 af hvy hex cplng nut hdg usa2
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Valley NuWACoupling NutGrade DHPlain7/8-9 x 3 x 11/2af a563 dh hvy hex cplng nut pl usa1
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Valley NuWACoupling NutGrade DHGalvanized1 1/2-6 x 4 1/2 x 21/2 dh hvy hex cplng nut hdg usa4
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Valley NuWACoupling NutGrade DHPlain3/4-10 x 2 1/4 x 11/4 a563 dh hvy hex cplng nut pl usa11
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