7/8 Hex Coupling Nuts

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 
AmericanNYCoupling Nut316, 317, A4 StainlessPlain7/8-9coupling nut 316 stainless6
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AmericanNYCoupling Nut316, 317, A4 StainlessPlain7/8-9coupling nut 316 stainless16
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Buy Hex Coupling Nuts from one of our FCH Network Partners
Zoro Tools Inc.Coupling NutSteelPlain7/8-9 x 2 1/4l coupling nut 7/8-9x2-1/4
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Zoro Tools Inc.Coupling NutSteelPlain7/8-9coupling nut carbon steel 7/8-9 pk2
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Buy Hex Coupling Nuts from one of our FCH Network Members
B & K FASTPACoupling NutSteelZinc/Clear7/8-9 x 2 1/27/8-9 x 2 1/2 long coupling nuts zinc b18.2.2201
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B & K FASTPACoupling Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain7/8-9 x 2 1/27/8-9 x 2 1/2 stainless coupling nuts b18.2.23
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SunPackFLCoupling NutSteelGalvanized7/8-9 x 2 1/27/8-9 x 2-1/2 coupling nut hdg94
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SunPackFLCoupling NutSteelZinc/Clear7/8-9coupling nut domestic3
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YANKEENHCoupling NutSteelZinc/Clear7/8-9coupling nut55
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VertexDILCoupling Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain7/8-9 1 1/4 x 2 1/27/8-9 coupling nut 1-1/4x2-1/2 18-8 ss995
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NutsBoltsNECoupling NutSteelZinc/Clear7/8-97/8-9 coupling nut zp82
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AmericanNYCoupling Nut316, 317, A4 StainlessPlain7/8-9coupling nut 316 stainless6
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ZAL INDUSCACoupling NutSteelZinc/Clear7/8-9 x 2 1/27/8-9 x 2 1/2 coupling nut pltd14
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ZAL INDUSCACoupling NutSteelPlain7/8-14 x 1 1/87/8-14 x 1 1/8 coupling nut42
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ACCURATEILCoupling NutSteelZinc/Clear7/8-9 x 2 1/2hex coupling nut10
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EmpireWACoupling NutGrade AZinc/Clear7/8-9 x 2 1/27/8-9 x2-1/2 coupling nut zp w=1-1/4 a563 grade a rohs3400
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EmpireWACoupling NutSteelZinc/Clear7/8-9 x 2 1/27/8-9 x2-1/2 coupling nut zp125
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EmpireWACoupling NutSteelZinc/Clear7/8-9 x 2 1/27/8-9 x2-1/2 coupling nut zp40
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AbabaCACoupling NutSteelZinc/Clear7/8-9 x 2 1/27/8-9 x 2 1/2 cplng nut stl znc b18.2.2373
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AbabaCACoupling NutSteelZinc/Clear7/8-9 x 2 1/27/8-9 x 2 1/2 cplng nut stl znc b18.2.220
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AbabaCACoupling NutSteelPlain7/8-9 x 37/8-9 x 3 cplng nut l.h. 1 3/8 a.f. stl pln b18.2.22
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LippinCACoupling NutSteelZinc/Clear7/8-9 x 1/27/8-9 x 1/2-13 reducer coupling nut zinc200
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LippinCACoupling NutSteelGalvanized7/8-97/8-9 coupling nut hdg2215
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LippinCACoupling NutSteelZinc/Clear7/8-9 x 5/8reducer coupling nut zinc plated118
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LippinCACoupling NutSteelZinc/Clear7/8-9 x 3/4reducer coupling nut zinc plated100
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LippinCACoupling NutSteelZinc/Clear7/8-9coupling nut w/ sight-hole zinc plated1540
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LippinCACoupling NutSteelZinc/Clear7/8-9coupling nut zinc plated4025
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LippinCACoupling NutSteelPlain7/8-9coupling nut plain28
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LippinCACoupling NutSteelZinc/Clear7/8-14coupling nut fine zinc plated64
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LippinCACoupling NutGrade 2HPlain7/8-9coupling nut heavy gr-2h plain19
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LippinCACoupling NutSteelPlain7/8-9coupling nut plain4230
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LippinCACoupling NutSteelGalvanized7/8-9coupling nut hot dipped galvanized2215
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LippinCACoupling NutSteelGalvanized7/8-9coupling nut w/ sight-hole hot dipped galvanized3697
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JacksonMSCoupling Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain7/8nc coupling nut 18-8 30410
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JacksonMSCoupling NutGrade 2HPlain7/8-9nc 2h coupling nut 1 7/16 wafx2 1/2 oal50
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LippinCACoupling NutSteelZinc/Clear7/8-9 x 2 1/27/8-9 x 2 1/2 coup nut zn (75)3500
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LippinCACoupling NutSteelPlain7/8-97/8-9 coup nut plain (75)4230
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QFCTXCoupling NutSteelZinc/Clear7/8-97/8-9 coupling nut zinc w/witness hole b18.2.274
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SRFALCoupling NutSteelZinc/Clear7/8-9 x 2 1/2coupling nut40
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BrikksenFLCoupling Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain7/8-97/8-9 coupling nut 18-8 b18.2.2170
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CertifiedILCoupling NutSteelZinc/Clear7/8-97/8-9 to 3/4-10 hex reducing coupling nut zps. b18.2.222
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CertifiedILCoupling NutSteelPlain7/8-9 x 2 1/27/8-9 x 2-1/2 hex coupling nut-zps. b18.2.210
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DeltaTXCoupling NutSteelZinc/Clear7/8-9rod coupling nut zinc 7/8-967
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RCFastAZCoupling NutGrade AZinc/Clear7/8hex coupling nut a563 gra cr+3 (1 1/4x2 1/2 regular)inquire
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RCFastAZCoupling NutGrade AZinc/Clear7/8-14hex coupling nut a563 gra cr+3 (1 1/4x2 1/2 economy)inquire
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RCFastAZCoupling NutGrade AZinc/Clear7/8hex coupling nut a563 gra cr+3 (1 1/4x2 1/2 regular)inquire
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RCFastAZCoupling NutGrade APlain7/8hex coupling nut a563 gra (1 1/4x2 1/2)inquire
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RCFastAZCoupling NutSteelGalvanized7/8hex coupling nut a563 hdg (1 1/4x2 1/2)inquire
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HBBOLTCACoupling NutSteelGalvanized7/8-9hex coupling nut h.d.galv.45
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MidStatesMICoupling Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain7/8-9coupling nut 18-82
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THRDFASTFLCoupling NutSteelPlain7/8-9 x 2 1/2coupling nut b18.2.255
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THRDFASTFLCoupling NutSteelZinc/Clear7/8-9reducing coupling nut 3/4-10 b18.2.226
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THRDFASTFLCoupling Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain7/8-918-8 ss coupling nut b18.2.22
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THRDFASTMSCoupling NutSteelZinc/Clear7/8-9coupling nut b18.2.248
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ISSCOMOCoupling NutGrade 2Zinc/Clear7/8-14 x 2 1/2nut hex coupling z/p97
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HewesNYCoupling NutSteelZinc/Clear7/8-9 x 2 1/2rod coupling nut pl17
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XL ScrewGACoupling NutSteelZinc/Clear7/8-9 x 1 1/4 x 2 1/2hex coupling nuts dc-dc zp80
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MasFasCorpNVCoupling NutSteelZinc/Clear7/8-9coupling nutinquire
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Kanebridge ILCoupling NutSteelZinc/Clear7/8-9 x 2 1/27/8-9x2 1/2 hex rod coupling nut 1 1/4 inch across flats zinc1,000
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Kanebridge ILCoupling NutGrade 5Zinc/Clear7/8-9 x 2 1/27/8-9x2 1/2 hex rod coupling nut 1 1/4 inch across flats grade 5 zinc1.500
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All SizeTXCoupling NutSteelPlain7/8-9 x 2 1/27/8-9 x 2 1/2 coupling nut b18.2.220
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Mid-ValleyCACoupling NutSteelPlain7/8-14 x 1 1/4coupling nut b18.2.2inquire
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NorthernMNCoupling NutSteelZinc/Clear7/8nc coupler nut (1-1/4hx 2-1/2 lg)150
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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 NutSteelZinc/Black7/8-9 x 2 1/21 1/4 nc hex coupling nut zb21
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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 NutSteelPlain7/8-9 x 2 1/2 x 11/4 af hex coupling nut nc pl32
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Valley NuWACoupling NutSteelGalvanized7/8-9 x 2 3/4 x 13/8af hex coupling nut hdg6
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Valley NuWACoupling NutSteelGalvanized7/8-9 x 2 1/2 x 11/4 nc hex coupling nut hdg68
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TimberlineCOCoupling NutSteelZinc/Clear7/8-9 x 2 1/2rod cpl nut zn 7/8-9 x 2-1/2121
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Alma BoltMICoupling NutSteelPlain7/8-9coupling nut407
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AMC IncCACoupling NutGrade 2Plain7/8-9coupling nut100
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