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Sponsored

$15.10

Coupling: Forged Steel, 1 in X 1 in Fitting Pipe Size, Female NPT X Female NPT, Class 3000 Model: 1MNA5

Grainger

$15.10

Coupling: Forged Steel, 1 in X 1 in Fitting Pipe Size, Female NPT X Female NPT, Class 3000 Model: 1MNA5

Grainger

$32.66

Coupling: 304 Stainless Steel, 2 in X 2 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 40FC111N020

Grainger

$32.66

Coupling: 304 Stainless Steel, 2 in X 2 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 40FC111N020

Grainger

$40.50

Merchant Coupling: Steel, 3 in X 3 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 4HVG8

Grainger

$40.50

Merchant Coupling: Steel, 3 in X 3 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 4HVG8

Grainger

$42.94

Coupling: 316 Stainless Steel, 2 in X 2 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 60FC111N020

Grainger

$42.94

Coupling: 316 Stainless Steel, 2 in X 2 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 60FC111N020

Grainger

$97.53

Coupling: 304 Stainless Steel, 3 in X 3 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 40FC111N030

Grainger

$97.53

Coupling: 304 Stainless Steel, 3 in X 3 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 40FC111N030

Grainger

$89.06

Smith Cooper Cast 150 Stainless Steel 3 in. Full Coupling Fitting - Threaded - Fig. S3116CP - 4381034300

John M. Ellsworth Co., Inc.

$89.06

Smith Cooper Cast 150 Stainless Steel 3 in. Full Coupling Fitting - Threaded - Fig. S3116CP - 4381034300

John M. Ellsworth Co., Inc.

$13.95

Coupling: Brass, 1/2 in X 1/2 in Fitting Pipe Size, Female NPT X Female NPT, 1 3/16 in Overall Lg Model: 706103-08

Grainger

$13.95

Coupling: Brass, 1/2 in X 1/2 in Fitting Pipe Size, Female NPT X Female NPT, 1 3/16 in Overall Lg Model: 706103-08

Grainger

$59.41

Value Collection Black Coupling: 3", Threaded - Malleable Iron, Class 150

MSC Direct

$59.41

Value Collection Black Coupling: 3", Threaded - Malleable Iron, Class 150

MSC Direct

$16.88

Coupling: 304 Stainless Steel, 1/2 in X 1/2 in Fitting Pipe Size, Female NPT X Female NPT Model: 2UA51

Grainger

$16.88

Coupling: 304 Stainless Steel, 1/2 in X 1/2 in Fitting Pipe Size, Female NPT X Female NPT Model: 2UA51

Grainger

$26.97

Made In USA | ASC Engineered Solutions Black Coupling: 2", Threaded - Forged Carbon Steel, Class 3000 | Part 0361156607

MSC Direct

$26.97

Made In USA | ASC Engineered Solutions Black Coupling: 2", Threaded - Forged Carbon Steel, Class 3000 | Part 0361156607

MSC Direct

$37.03

Coupling: 304 Stainless Steel, 1 in X 1 in Fitting Pipe Size, Female NPT X Female NPT, Class 3000 Model: 4307000064

Grainger

$37.03

Coupling: 304 Stainless Steel, 1 in X 1 in Fitting Pipe Size, Female NPT X Female NPT, Class 3000 Model: 4307000064

Grainger

$43.23

Value Collection Black Coupling: 1/4", Threaded - Malleable Iron, Class 150

MSC Direct

$43.23

Value Collection Black Coupling: 1/4", Threaded - Malleable Iron, Class 150

MSC Direct

$29.90

Coupling: 316/316L Stainless Steel, 1/2 in X 1/2 in Fitting Pipe Size, Female NPT X Female NPT Model: 1000300718

Grainger

$29.90

Coupling: 316/316L Stainless Steel, 1/2 in X 1/2 in Fitting Pipe Size, Female NPT X Female NPT Model: 1000300718

Grainger

$1.79

NIBCO C430-007 3/4" Fiptxfipt Threaded Coupling

hdsupplysolutions.com

$1.79

NIBCO C430-007 3/4" Fiptxfipt Threaded Coupling

hdsupplysolutions.com

$43.34

Value Collection Black Coupling: 3/8", Threaded - Malleable Iron, Class 150

MSC Direct

$43.34

Value Collection Black Coupling: 3/8", Threaded - Malleable Iron, Class 150

MSC Direct

$57.25

Hex Coupling: 304 Stainless Steel, 3/8 in X 3/8 in Fitting Pipe Size, Female NPT X Female NPT Model: ZUSA-PF-7804

Grainger

$57.25

Hex Coupling: 304 Stainless Steel, 3/8 in X 3/8 in Fitting Pipe Size, Female NPT X Female NPT Model: ZUSA-PF-7804

Grainger

$4.02

Value Collection Black Coupling: 3/4", Threaded - Malleable Iron, Class 150 | Part B220 20

MSC Direct

$4.02

Value Collection Black Coupling: 3/4", Threaded - Malleable Iron, Class 150 | Part B220 20

MSC Direct

$19.99

Allied Tube & Conduit Threaded Coupling: Aluminum, 1 1/2 in Trade Size, 2 1/16 in Overall Lg, RMC Model: 732327

Grainger

$19.99

Allied Tube & Conduit Threaded Coupling: Aluminum, 1 1/2 in Trade Size, 2 1/16 in Overall Lg, RMC Model: 732327

Grainger

$30.24

Coupling: 304 Stainless Steel, 1/2 in X 1/2 in Fitting Pipe Size, Female BSPP X Female BSPP Model: ZUSA-PF-8056

Grainger

$30.24

Coupling: 304 Stainless Steel, 1/2 in X 1/2 in Fitting Pipe Size, Female BSPP X Female BSPP Model: ZUSA-PF-8056

Grainger

$21.88

Coupling: 304 Stainless Steel, 3/4 in X 3/4 in Fitting Pipe Size, Female NPT X Female NPT Model: 4307000062

Grainger

$21.88

Coupling: 304 Stainless Steel, 3/4 in X 3/4 in Fitting Pipe Size, Female NPT X Female NPT Model: 4307000062

Grainger

$14.14

Coupling: 304 Stainless Steel, 1 in X 1 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 40FC111N010

Grainger

$14.14

Coupling: 304 Stainless Steel, 1 in X 1 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 40FC111N010

Grainger

$8.09

Coupling: 304 Stainless Steel, 3/4 in X 3/4 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 40FC111N034

Grainger

$8.09

Coupling: 304 Stainless Steel, 3/4 in X 3/4 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 40FC111N034

Grainger

$30.66

Coupling: 304/304L Stainless Steel, 3/4 in X 3/4 in Fitting Pipe Size, Female NPT X Female NPT Model: 1500300712

Grainger

$30.66

Coupling: 304/304L Stainless Steel, 3/4 in X 3/4 in Fitting Pipe Size, Female NPT X Female NPT Model: 1500300712

Grainger

$6.63

Merchant Coupling: Steel, 1 in X 1 in Fitting Pipe Size, NPT X Female NPT, Class 150 Model: 71105

Grainger

$6.63

Merchant Coupling: Steel, 1 in X 1 in Fitting Pipe Size, NPT X Female NPT, Class 150 Model: 71105

Grainger

$49.99

Coupling: Brass, 3/4 in X 3/4 in Fitting Pipe Size, Female NPT X Female NPT, Class 150, 5 PK [PK/5] Model: 6AYR0

Grainger

$49.99

Coupling: Brass, 3/4 in X 3/4 in Fitting Pipe Size, Female NPT X Female NPT, Class 150, 5 PK [PK/5] Model: 6AYR0

Grainger

$3.93

Value Collection Black Coupling: 1/4", Threaded - Malleable Iron, Class 150 | Part B220 8

MSC Direct

$3.93

Value Collection Black Coupling: 1/4", Threaded - Malleable Iron, Class 150 | Part B220 8

MSC Direct

$32.55

Value Collection Black Coupling: 1", Threaded - Malleable Iron, Class 150

MSC Direct

$32.55

Value Collection Black Coupling: 1", Threaded - Malleable Iron, Class 150

MSC Direct

$36.86

Coupling: Malleable Iron, 3 in X 3 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 2WU60

Grainger

$36.86

Coupling: Malleable Iron, 3 in X 3 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 2WU60

Grainger

$43.74

Value Collection Black Coupling: 1-1/2", Threaded - Malleable Iron, Class 150

MSC Direct

$43.74

Value Collection Black Coupling: 1-1/2", Threaded - Malleable Iron, Class 150

MSC Direct

$72.27

Merit Brass Brass Pipe Coupling: 1-1/2" Fitting, Threaded, FNPT X FNPT, Class 125 - FNPT X FNPT Ends, Class 125 | Part X111-24

MSC Direct

$72.27

Merit Brass Brass Pipe Coupling: 1-1/2" Fitting, Threaded, FNPT X FNPT, Class 125 - FNPT X FNPT Ends, Class 125 | Part X111-24

MSC Direct

$79.88

Merit Brass Brass Pipe Coupling: 2" Fitting, Threaded, FNPT X FNPT, Class 125, Lead Free - 125 Psi, Brass | Part XNL111-32

MSC Direct

$79.88

Merit Brass Brass Pipe Coupling: 2" Fitting, Threaded, FNPT X FNPT, Class 125, Lead Free - 125 Psi, Brass | Part XNL111-32

MSC Direct

$25.96

Value Collection Pipe Coupling: 2", 304 Stainless Steel - FNPT X FNPT, Threaded, MSS SP-114, ASME B1.20.1 & ASTM A351, 150 Psi

MSC Direct

$25.96

Value Collection Pipe Coupling: 2", 304 Stainless Steel - FNPT X FNPT, Threaded, MSS SP-114, ASME B1.20.1 & ASTM A351, 150 Psi

MSC Direct

$106.70

Dwyer | LLC-82 | Threaded Mounting Coupling.

Blackhawk Supply

$106.70

Dwyer | LLC-82 | Threaded Mounting Coupling.

Blackhawk Supply

$106.68

Value Collection | Anvil Black Coupling: 4", Threaded - Steel, ASTM, Class 150 | Part 410T40

MSC Direct

$106.68

Value Collection | Anvil Black Coupling: 4", Threaded - Steel, ASTM, Class 150 | Part 410T40

MSC Direct

$6.50

Value Collection | Anvil Black Coupling: 1", Threaded - Malleable Iron, ASTM, Class 150 | Part 410S10

MSC Direct

$6.50

Value Collection | Anvil Black Coupling: 1", Threaded - Malleable Iron, ASTM, Class 150 | Part 410S10

MSC Direct

$28.55

CPL2G - Ocal 2 Inch PVC-Coated Steel Electrical Conduit Coupling, Straight Threaded, Gray

Essential Electric Supply

$28.55

CPL2G - Ocal 2 Inch PVC-Coated Steel Electrical Conduit Coupling, Straight Threaded, Gray

Essential Electric Supply

1:43

YouTubeSupplyHouse

How to Make Threaded Pipe Connections

Many pipe threads including black, galvanized, and PVC are tapered, meaning that the thread is smaller on the end and gradually gets bigger as it goes up the pipe. As fittings travel up the thread, the connection becomes tighter, but not liquid-tight. Thread sealants are used to get a liquid-tight connection. Teflon tape or liquid thread ...

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Shear 30T Strut & Threaded Rod Hydraulic Shearing Station 2018

YouTubeGreenleeTools

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Makita's NEW 18v Brushless Threaded Rod Cutter

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Shop threaded coupling

Sponsored

$15.10

Coupling: Forged Steel, 1 in X 1 in Fitting Pipe Size, Female NPT X Female NPT, Class 3000 Model: 1MNA5

Grainger

$15.10

Coupling: Forged Steel, 1 in X 1 in Fitting Pipe Size, Female NPT X Female NPT, Class 3000 Model: 1MNA5

Grainger

$32.66

Coupling: 304 Stainless Steel, 2 in X 2 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 40FC111N020

Grainger

$32.66

Coupling: 304 Stainless Steel, 2 in X 2 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 40FC111N020

Grainger

$40.50

Merchant Coupling: Steel, 3 in X 3 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 4HVG8

Grainger

$40.50

Merchant Coupling: Steel, 3 in X 3 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 4HVG8

Grainger

$42.94

Coupling: 316 Stainless Steel, 2 in X 2 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 60FC111N020

Grainger

$42.94

Coupling: 316 Stainless Steel, 2 in X 2 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 60FC111N020

Grainger

$97.53

Coupling: 304 Stainless Steel, 3 in X 3 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 40FC111N030

Grainger

$97.53

Coupling: 304 Stainless Steel, 3 in X 3 in Fitting Pipe Size, Female NPT X Female NPT, Class 150 Model: 40FC111N030

Grainger

$89.06

Smith Cooper Cast 150 Stainless Steel 3 in. Full Coupling Fitting - Threaded - Fig. S3116CP - 4381034300

John M. Ellsworth Co., Inc.

$89.06

Smith Cooper Cast 150 Stainless Steel 3 in. Full Coupling Fitting - Threaded - Fig. S3116CP - 4381034300

John M. Ellsworth Co., Inc.

$13.95

Coupling: Brass, 1/2 in X 1/2 in Fitting Pipe Size, Female NPT X Female NPT, 1 3/16 in Overall Lg Model: 706103-08

Grainger

$13.95

Coupling: Brass, 1/2 in X 1/2 in Fitting Pipe Size, Female NPT X Female NPT, 1 3/16 in Overall Lg Model: 706103-08

Grainger

$59.41

Value Collection Black Coupling: 3", Threaded - Malleable Iron, Class 150

MSC Direct

$59.41

Value Collection Black Coupling: 3", Threaded - Malleable Iron, Class 150

MSC Direct

$16.88

Coupling: 304 Stainless Steel, 1/2 in X 1/2 in Fitting Pipe Size, Female NPT X Female NPT Model: 2UA51

Grainger

$16.88

Coupling: 304 Stainless Steel, 1/2 in X 1/2 in Fitting Pipe Size, Female NPT X Female NPT Model: 2UA51

Grainger

$26.97

Made In USA | ASC Engineered Solutions Black Coupling: 2", Threaded - Forged Carbon Steel, Class 3000 | Part 0361156607

MSC Direct

$26.97

Made In USA | ASC Engineered Solutions Black Coupling: 2", Threaded - Forged Carbon Steel, Class 3000 | Part 0361156607

MSC Direct

$37.03

Coupling: 304 Stainless Steel, 1 in X 1 in Fitting Pipe Size, Female NPT X Female NPT, Class 3000 Model: 4307000064

Grainger

$37.03

Coupling: 304 Stainless Steel, 1 in X 1 in Fitting Pipe Size, Female NPT X Female NPT, Class 3000 Model: 4307000064

Grainger

$43.23

Value Collection Black Coupling: 1/4", Threaded - Malleable Iron, Class 150

MSC Direct

$43.23

Value Collection Black Coupling: 1/4", Threaded - Malleable Iron, Class 150

MSC Direct

$29.90

Coupling: 316/316L Stainless Steel, 1/2 in X 1/2 in Fitting Pipe Size, Female NPT X Female NPT Model: 1000300718

Grainger

$29.90

Coupling: 316/316L Stainless Steel, 1/2 in X 1/2 in Fitting Pipe Size, Female NPT X Female NPT Model: 1000300718

Grainger

$1.79

NIBCO C430-007 3/4" Fiptxfipt Threaded Coupling

hdsupplysolutions.com

$1.79

NIBCO C430-007 3/4" Fiptxfipt Threaded Coupling

hdsupplysolutions.com

$43.34

Value Collection Black Coupling: 3/8", Threaded - Malleable Iron, Class 150

MSC Direct

$43.34

Value Collection Black Coupling: 3/8", Threaded - Malleable Iron, Class 150

MSC Direct

$57.25

Hex Coupling: 304 Stainless Steel, 3/8 in X 3/8 in Fitting Pipe Size, Female NPT X Female NPT Model: ZUSA-PF-7804

Grainger

$57.25

Hex Coupling: 304 Stainless Steel, 3/8 in X 3/8 in Fitting Pipe Size, Female NPT X Female NPT Model: ZUSA-PF-7804

Grainger

$4.02

Value Collection Black Coupling: 3/4", Threaded - Malleable Iron, Class 150 | Part B220 20

MSC Direct

$4.02

Value Collection Black Coupling: 3/4", Threaded - Malleable Iron, Class 150 | Part B220 20

MSC Direct

$19.99

Allied Tube & Conduit Threaded Coupling: Aluminum, 1 1/2 in Trade Size, 2 1/16 in Overall Lg, RMC Model: 732327

Grainger

$19.99

Allied Tube & Conduit Threaded Coupling: Aluminum, 1 1/2 in Trade Size, 2 1/16 in Overall Lg, RMC Model: 732327

Grainger

Threaded Couplings
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Threaded Couplings