Best Coupling Nuts. Reviews November, 2020

U-Turn - 1/4-20 Coupling Nut Zinc Plated (1-3/4" Length) (10 Pack)

Search only U-Turn Fasteners, Inc. brand name
U-Turn - 1/4-20 Coupling Nut Zinc Plated (1-3/4

Current price: 12.43 USD


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  • MATERIAL - Low Carbon Steel, Zinc Clear
  • WIDTH ACROSS THE FLATS - 7/16"
  • LENGTH - 1-3/4"
  • THREAD SIZE - 1/4"-20
  • ITEM TYPE: Hex Coupling Nut

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Hard-to-Find Fastener 014973403300 Coarse Rod Coupling Nuts, 1/4-20, Piece-25

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Hard-to-Find Fastener 014973403300 Coarse Rod Coupling Nuts, 1/4-20, Piece-25

Current price: 15.58 USD


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Height: 2.125 Inches

Length: 3.5 Inches

Width: 3.125 Inches

  • MATERIAL - Low Carbon Steel, Zinc Clear
  • WIDTH ACROSS THE FLATS - 7/16"
  • LENGTH - 1-3/4"
  • THREAD SIZE - 1/4"-20
  • ITEM TYPE: Hex Coupling Nut
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter 2: 7/16 Inch
  • Diameter 1: 1/4 inch
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4-Inch
  • Diameter 2: 7/16-Inch
  • Diameter 1: 1/4-Inch

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Hard-to-Find Fastener 014973403393 Coarse Rod Coupling Nuts, 1/2-13, Piece-12

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Hard-to-Find Fastener 014973403393 Coarse Rod Coupling Nuts, 1/2-13, Piece-12

Current price: 18.72 USD


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Height: 2.125 Inches

Length: 3.5 Inches

Width: 3.125 Inches

Weight: 1.26 Pounds

  • MATERIAL - Low Carbon Steel, Zinc Clear
  • WIDTH ACROSS THE FLATS - 7/16"
  • LENGTH - 1-3/4"
  • THREAD SIZE - 1/4"-20
  • ITEM TYPE: Hex Coupling Nut
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter 2: 7/16 Inch
  • Diameter 1: 1/4 inch
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4-Inch
  • Diameter 2: 7/16-Inch
  • Diameter 1: 1/4-Inch
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter 2: 11/16 Inch
  • Diameter 1: 1/2 inch
  • Driver Type: 11/16" Wrench
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter: 1/2"

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Smartsails 2PCS M8 X 1.25-Pitch 25mm Length 304 Stainless Steel Metric Hex Coupling Nut

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Smartsails 2PCS M8 X 1.25-Pitch 25mm Length 304 Stainless Steel Metric Hex Coupling Nut

Current price: 6.19 USD


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  • MATERIAL - Low Carbon Steel, Zinc Clear
  • WIDTH ACROSS THE FLATS - 7/16"
  • LENGTH - 1-3/4"
  • THREAD SIZE - 1/4"-20
  • ITEM TYPE: Hex Coupling Nut
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter 2: 7/16 Inch
  • Diameter 1: 1/4 inch
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4-Inch
  • Diameter 2: 7/16-Inch
  • Diameter 1: 1/4-Inch
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter 2: 11/16 Inch
  • Diameter 1: 1/2 inch
  • Driver Type: 11/16" Wrench
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter: 1/2"
  • ✦ APPLICATION: Designed To Secure 2 Parts Together, Usually Threaded Rod.Strong And Are Great For Both Indoor And Outdoor Use
  • ✦ Hex-Shaped On The Outside So A Wrench Can Tighten Or Loosen It
  • ✦ Length: 25mm / 0.98" Pitch:1.25mm
  • ✦ Hex Width: 13mm / 0.51"
  • ✦ Material: Made Of 304 Stainless Steel, It Has Good Rust Resistance And Durability.

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uxcell M6 X 1-Pitch 30mm Length 304 Stainless Steel Metric Hex Coupling Nut, 4PCS

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uxcell M6 X 1-Pitch 30mm Length 304 Stainless Steel Metric Hex Coupling Nut, 4PCS

Current price: 8.79 USD


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Height: 0.79 Inches

Length: 1.97 Inches

Width: 1.57 Inches

  • MATERIAL - Low Carbon Steel, Zinc Clear
  • WIDTH ACROSS THE FLATS - 7/16"
  • LENGTH - 1-3/4"
  • THREAD SIZE - 1/4"-20
  • ITEM TYPE: Hex Coupling Nut
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter 2: 7/16 Inch
  • Diameter 1: 1/4 inch
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4-Inch
  • Diameter 2: 7/16-Inch
  • Diameter 1: 1/4-Inch
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter 2: 11/16 Inch
  • Diameter 1: 1/2 inch
  • Driver Type: 11/16" Wrench
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter: 1/2"
  • ✦ APPLICATION: Designed To Secure 2 Parts Together, Usually Threaded Rod.Strong And Are Great For Both Indoor And Outdoor Use
  • ✦ Hex-Shaped On The Outside So A Wrench Can Tighten Or Loosen It
  • ✦ Length: 25mm / 0.98" Pitch:1.25mm
  • ✦ Hex Width: 13mm / 0.51"
  • ✦ Material: Made Of 304 Stainless Steel, It Has Good Rust Resistance And Durability.
  • APPLICATION: Strong and are great for both indoor and outdoor use.
  • Made of 304 stainless steel, good rust and durable.
  • Length: 30mm / 1.18"
  • Hex Width: 10mm / 0.39"
  • Pitch: 1mm

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Smartsails 5PCS M6 X 1-Pitch 30mm Length 304 Stainless Steel Metric Hex Coupling Nut

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Smartsails 5PCS M6 X 1-Pitch 30mm Length 304 Stainless Steel Metric Hex Coupling Nut

Current price: 9.99 USD


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  • MATERIAL - Low Carbon Steel, Zinc Clear
  • WIDTH ACROSS THE FLATS - 7/16"
  • LENGTH - 1-3/4"
  • THREAD SIZE - 1/4"-20
  • ITEM TYPE: Hex Coupling Nut
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter 2: 7/16 Inch
  • Diameter 1: 1/4 inch
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4-Inch
  • Diameter 2: 7/16-Inch
  • Diameter 1: 1/4-Inch
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter 2: 11/16 Inch
  • Diameter 1: 1/2 inch
  • Driver Type: 11/16" Wrench
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter: 1/2"
  • ✦ APPLICATION: Designed To Secure 2 Parts Together, Usually Threaded Rod.Strong And Are Great For Both Indoor And Outdoor Use
  • ✦ Hex-Shaped On The Outside So A Wrench Can Tighten Or Loosen It
  • ✦ Length: 25mm / 0.98" Pitch:1.25mm
  • ✦ Hex Width: 13mm / 0.51"
  • ✦ Material: Made Of 304 Stainless Steel, It Has Good Rust Resistance And Durability.
  • APPLICATION: Strong and are great for both indoor and outdoor use.
  • Made of 304 stainless steel, good rust and durable.
  • Length: 30mm / 1.18"
  • Hex Width: 10mm / 0.39"
  • Pitch: 1mm
  • APPLICATION: Designed To Secure 2 Parts Together, Usually Threaded Rod.Strong And Are Great For Both Indoor And Outdoor Use
  • Hex-Shaped On The Outside So A Wrench Can Tighten Or Loosen It
  • Length: 30mm / 1.18" Pitch: 1mm
  • Hex Width: 10mm / 0.39"
  • Material: Made Of 304 Stainless Steel, It Has Good Rust Resistance And Durability.

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Hard-to-Find Fastener 014973322076 Coupling Nuts, 10-32, Piece-5

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Hard-to-Find Fastener 014973322076 Coupling Nuts, 10-32, Piece-5

Current price: 10.35 USD


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Height: 1.25 Inches

Length: 2.5 Inches

Width: 1.44 Inches

Weight: 0.02 Pounds

  • MATERIAL - Low Carbon Steel, Zinc Clear
  • WIDTH ACROSS THE FLATS - 7/16"
  • LENGTH - 1-3/4"
  • THREAD SIZE - 1/4"-20
  • ITEM TYPE: Hex Coupling Nut
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter 2: 7/16 Inch
  • Diameter 1: 1/4 inch
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4-Inch
  • Diameter 2: 7/16-Inch
  • Diameter 1: 1/4-Inch
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter 2: 11/16 Inch
  • Diameter 1: 1/2 inch
  • Driver Type: 11/16" Wrench
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter: 1/2"
  • ✦ APPLICATION: Designed To Secure 2 Parts Together, Usually Threaded Rod.Strong And Are Great For Both Indoor And Outdoor Use
  • ✦ Hex-Shaped On The Outside So A Wrench Can Tighten Or Loosen It
  • ✦ Length: 25mm / 0.98" Pitch:1.25mm
  • ✦ Hex Width: 13mm / 0.51"
  • ✦ Material: Made Of 304 Stainless Steel, It Has Good Rust Resistance And Durability.
  • APPLICATION: Strong and are great for both indoor and outdoor use.
  • Made of 304 stainless steel, good rust and durable.
  • Length: 30mm / 1.18"
  • Hex Width: 10mm / 0.39"
  • Pitch: 1mm
  • APPLICATION: Designed To Secure 2 Parts Together, Usually Threaded Rod.Strong And Are Great For Both Indoor And Outdoor Use
  • Hex-Shaped On The Outside So A Wrench Can Tighten Or Loosen It
  • Length: 30mm / 1.18" Pitch: 1mm
  • Hex Width: 10mm / 0.39"
  • Material: Made Of 304 Stainless Steel, It Has Good Rust Resistance And Durability.
  • Driver Type: 5/16" Wrench
  • Finish: Zinc
  • Material: Steel
  • Length: 3/4 inches
  • Diameter: #10

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Hillman USS Coarse Coupling Nuts 1/2"-13

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Hillman USS Coarse Coupling Nuts 1/2

Current price: 26.42 USD


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Height: 3.31 Inches

Length: 4.18 Inches

Width: 4.18 Inches

Weight: 2.95 Pounds

  • MATERIAL - Low Carbon Steel, Zinc Clear
  • WIDTH ACROSS THE FLATS - 7/16"
  • LENGTH - 1-3/4"
  • THREAD SIZE - 1/4"-20
  • ITEM TYPE: Hex Coupling Nut
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter 2: 7/16 Inch
  • Diameter 1: 1/4 inch
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4-Inch
  • Diameter 2: 7/16-Inch
  • Diameter 1: 1/4-Inch
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter 2: 11/16 Inch
  • Diameter 1: 1/2 inch
  • Driver Type: 11/16" Wrench
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter: 1/2"
  • ✦ APPLICATION: Designed To Secure 2 Parts Together, Usually Threaded Rod.Strong And Are Great For Both Indoor And Outdoor Use
  • ✦ Hex-Shaped On The Outside So A Wrench Can Tighten Or Loosen It
  • ✦ Length: 25mm / 0.98" Pitch:1.25mm
  • ✦ Hex Width: 13mm / 0.51"
  • ✦ Material: Made Of 304 Stainless Steel, It Has Good Rust Resistance And Durability.
  • APPLICATION: Strong and are great for both indoor and outdoor use.
  • Made of 304 stainless steel, good rust and durable.
  • Length: 30mm / 1.18"
  • Hex Width: 10mm / 0.39"
  • Pitch: 1mm
  • APPLICATION: Designed To Secure 2 Parts Together, Usually Threaded Rod.Strong And Are Great For Both Indoor And Outdoor Use
  • Hex-Shaped On The Outside So A Wrench Can Tighten Or Loosen It
  • Length: 30mm / 1.18" Pitch: 1mm
  • Hex Width: 10mm / 0.39"
  • Material: Made Of 304 Stainless Steel, It Has Good Rust Resistance And Durability.
  • Driver Type: 5/16" Wrench
  • Finish: Zinc
  • Material: Steel
  • Length: 3/4 inches
  • Diameter: #10
  • Use with fasteners of the same threading and finish
  • For industrial applications
  • Similar to hex nuts with extreme height measurements giving them length
  • Used to make up long rod assemblies from shorter lengths of rods
  • Threaded fasteners for joining two male threads, most commonly threaded rod

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Hard-to-Find Fastener 014973322137 Coupling Nuts, 5/16-24, Piece-5

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Hard-to-Find Fastener 014973322137 Coupling Nuts, 5/16-24, Piece-5

Current price: 9.15 USD


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Height: 1.44 Inches

Length: 2.5 Inches

Width: 2.19 Inches

Weight: 0.66 Pounds

  • MATERIAL - Low Carbon Steel, Zinc Clear
  • WIDTH ACROSS THE FLATS - 7/16"
  • LENGTH - 1-3/4"
  • THREAD SIZE - 1/4"-20
  • ITEM TYPE: Hex Coupling Nut
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter 2: 7/16 Inch
  • Diameter 1: 1/4 inch
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4-Inch
  • Diameter 2: 7/16-Inch
  • Diameter 1: 1/4-Inch
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter 2: 11/16 Inch
  • Diameter 1: 1/2 inch
  • Driver Type: 11/16" Wrench
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter: 1/2"
  • ✦ APPLICATION: Designed To Secure 2 Parts Together, Usually Threaded Rod.Strong And Are Great For Both Indoor And Outdoor Use
  • ✦ Hex-Shaped On The Outside So A Wrench Can Tighten Or Loosen It
  • ✦ Length: 25mm / 0.98" Pitch:1.25mm
  • ✦ Hex Width: 13mm / 0.51"
  • ✦ Material: Made Of 304 Stainless Steel, It Has Good Rust Resistance And Durability.
  • APPLICATION: Strong and are great for both indoor and outdoor use.
  • Made of 304 stainless steel, good rust and durable.
  • Length: 30mm / 1.18"
  • Hex Width: 10mm / 0.39"
  • Pitch: 1mm
  • APPLICATION: Designed To Secure 2 Parts Together, Usually Threaded Rod.Strong And Are Great For Both Indoor And Outdoor Use
  • Hex-Shaped On The Outside So A Wrench Can Tighten Or Loosen It
  • Length: 30mm / 1.18" Pitch: 1mm
  • Hex Width: 10mm / 0.39"
  • Material: Made Of 304 Stainless Steel, It Has Good Rust Resistance And Durability.
  • Driver Type: 5/16" Wrench
  • Finish: Zinc
  • Material: Steel
  • Length: 3/4 inches
  • Diameter: #10
  • Use with fasteners of the same threading and finish
  • For industrial applications
  • Similar to hex nuts with extreme height measurements giving them length
  • Used to make up long rod assemblies from shorter lengths of rods
  • Threaded fasteners for joining two male threads, most commonly threaded rod
  • Finish: Zinc
  • Material: Steel
  • Length: 7/8 inches
  • Diameter 2: 7/16 inches
  • Diameter 1: 5/16 inches

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The Hillman Group 4375 3/8-24 Coupling Nut Fine Thread (5-Pack)

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The Hillman Group 4375 3/8-24 Coupling Nut Fine Thread (5-Pack)

Current price: 15.08 USD

Saving: $3.92 (21%)


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Height: 1.6 Inches

Length: 2.4 Inches

Width: 2.6 Inches

Weight: 0.22 Pounds

  • MATERIAL - Low Carbon Steel, Zinc Clear
  • WIDTH ACROSS THE FLATS - 7/16"
  • LENGTH - 1-3/4"
  • THREAD SIZE - 1/4"-20
  • ITEM TYPE: Hex Coupling Nut
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter 2: 7/16 Inch
  • Diameter 1: 1/4 inch
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4-Inch
  • Diameter 2: 7/16-Inch
  • Diameter 1: 1/4-Inch
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter 2: 11/16 Inch
  • Diameter 1: 1/2 inch
  • Driver Type: 11/16" Wrench
  • Finish: Zinc
  • Material: Steel
  • Length: 1-3/4 inch
  • Diameter: 1/2"
  • ✦ APPLICATION: Designed To Secure 2 Parts Together, Usually Threaded Rod.Strong And Are Great For Both Indoor And Outdoor Use
  • ✦ Hex-Shaped On The Outside So A Wrench Can Tighten Or Loosen It
  • ✦ Length: 25mm / 0.98" Pitch:1.25mm
  • ✦ Hex Width: 13mm / 0.51"
  • ✦ Material: Made Of 304 Stainless Steel, It Has Good Rust Resistance And Durability.
  • APPLICATION: Strong and are great for both indoor and outdoor use.
  • Made of 304 stainless steel, good rust and durable.
  • Length: 30mm / 1.18"
  • Hex Width: 10mm / 0.39"
  • Pitch: 1mm
  • APPLICATION: Designed To Secure 2 Parts Together, Usually Threaded Rod.Strong And Are Great For Both Indoor And Outdoor Use
  • Hex-Shaped On The Outside So A Wrench Can Tighten Or Loosen It
  • Length: 30mm / 1.18" Pitch: 1mm
  • Hex Width: 10mm / 0.39"
  • Material: Made Of 304 Stainless Steel, It Has Good Rust Resistance And Durability.
  • Driver Type: 5/16" Wrench
  • Finish: Zinc
  • Material: Steel
  • Length: 3/4 inches
  • Diameter: #10
  • Use with fasteners of the same threading and finish
  • For industrial applications
  • Similar to hex nuts with extreme height measurements giving them length
  • Used to make up long rod assemblies from shorter lengths of rods
  • Threaded fasteners for joining two male threads, most commonly threaded rod
  • Finish: Zinc
  • Material: Steel
  • Length: 7/8 inches
  • Diameter 2: 7/16 inches
  • Diameter 1: 5/16 inches
  • This is a 3/8-24 coupling nut , the length being 1 1/8” and with a ½” hex.
  • Steel/Zinc Plated
  • Coupling Nuts are used to make up long rod assemblies from shorter lengths of rods
  • Coupling nuts are threaded fasteners for joining two male threads, most commonly threaded rod

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