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Best Coupling Nuts - Buying Guide

Last Updated: 11/15/2018

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Bestselling Coupling Nuts on Amazon

  1. Magic&shell 2-Pack 8mm Flange Shaft Coupling High Hardness Metal Axis Bearing Fittings DIY Model Acc...
  2. Magic&shell 2-Pack 6mm Flange Shaft Coupling High Hardness Metal Axis Bearing Fittings DIY Model Acc...
  3. uxcell 5mm to 8mm Shaft Coupling 30mm Length 25mm Diameter Motor Coupler Aluminum Alloy Joint Connec...
  4. uxcell 7mm Bore 18mm Length Brass Motor Tyre Coupling Joint Hex Coupler Gold Tone
  5. uxcell 5mm to 8mm Shaft Coupling 25mm Length 20mm Diameter Stepper Motor Coupler Aluminum Alloy Join...
  6. uxcell Shaft Coupling 12mm to 12mm Bore L35xD25 Flexible Coupler Joint for Servo Stepped Motor
  7. Hard-to-Find Fastener 014973403331 Coarse Rod Coupling Nuts, 5/16-18, Piece-20
  8. Magic&Shell Flange Shaft Coupling High Hardness Metal Axis Bearing Fittings DIY Model Accessory Rigi...
  9. uxcell 8mm to 12mm Shaft Coupling 30mm Length 25mm Diameter Stepper Motor Coupler Aluminum Alloy Joi...
  10. Magic&shell 2-Pack 5mm Flange Shaft Coupling High Hardness Metal Axis Bearing Fittings DIY Model Acc...

  #1

Magic&shell 2-Pack 8mm Flange Shaft Coupling High Hardness Metal Axis Bearing Fittings DIY Model Accessory Rigid Flange Guide Shaft Coupler Motor Connector

 Ean: 0705883157284   |    PartNumber: COUPLER-FSM8-2   |   Asin: B07FLTKK8B

Type: Flange Shaft Coupling
Metal: Fine plating metal, hardened by heat treatment, and then electroplated
Function: A special coupler, which can fix one shaft to a plane and install other parts on the shaft easily.
Use: Suitable for model shaft connection, perfect accessories for RC Model motor, etc.
Feature: Durable and insulation, make your shaft more stable, easy to install and replace.

Specification:
Inner Diameter: 8mm
Cylinder Outer Diameter: 16mm
Cylinder Height: 10mm
Base Diameter: 32mm
Base Height: 3mm
Fastening Screw Hole: M4
Base Fixing Screw Hole: M4

Package:
2 x 8mm Flange Shaft Coupling
1 x M4 Mini Hex Wrench
4 x M4 Fastening Screw

Features

  • Type: Flange Shaft Coupling, suitable for model shaft connection, perfect accessories for RC Model motor, etc.
  • Inner Diameter: 8mm, Cylinder Outer Diameter: 16mm, Cylinder Height: 10mm, Base Diameter: 32mm, Base Height: 3mm, Fastening Screw Hole: M4, Base Fixing Screw Hole: M4
  • Metal: Fine plating metal, hardened by heat treatment, and then electroplated. Durable and insulation, make your shaft more stable, easy to install and replace.
  • Function: A special coupler, which can fix one shaft to a plane and install other parts on the shaft easily.
  • Package: 2 x 8mm Flange Shaft Coupling + 1 x M4 Mini Hex Wrench + 4 x M4 Fastening Screw
  • See more on Amazon...

Brand: Magic&Shell

Package Dimensions: 1.14 x 2.48 x 2.95 inches (2.9 x 6.3 x 7.5 cm)

Amazon Price: $11.99 | as of 11/15/2018(7:44am pst)
Availibility: Usually ships in 24 hours
List Price: $11.99

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  #2

Magic&shell 2-Pack 6mm Flange Shaft Coupling High Hardness Metal Axis Bearing Fittings DIY Model Accessory Rigid Flange Guide Shaft Coupler Motor Connector

 Ean: 0705883157277   |    PartNumber: COUPLER-FSM6-2   |   Asin: B07FLWQMNW

Type: Flange Shaft Coupling
Metal: Fine plating metal, hardened by heat treatment, and then electroplated
Function: A special coupler, which can fix one shaft to a plane and install other parts on the shaft easily.
Use: Suitable for model shaft connection, perfect accessories for RC Model motor, etc.
Feature: Durable and insulation, make your shaft more stable, easy to install and replace.

Specification:
Inner Diameter: 6mm
Cylinder Outer Diameter: 10mm
Cylinder Height: 10mm
Base Diameter: 22mm
Base Height: 2mm
Fastening Screw Hole: M3
Base Fixing Screw Hole: M3

Package:
2 x 6mm Flange Shaft Coupling
1 x M3 Mini Hex Wrench
4 x M3 Fastening Screw

Features

  • Type: Flange Shaft Coupling, suitable for model shaft connection, perfect accessories for RC Model motor, etc.
  • Inner Diameter: 6mm, Cylinder Outer Diameter: 10mm, Cylinder Height: 10mm, Base Diameter: 22mm, Base Height: 2mm, Fastening Screw Hole: M3, Base Fixing Screw Hole: M3
  • Metal: Fine plating metal, hardened by heat treatment, and then electroplated. Durable and insulation, make your shaft more stable, easy to install and replace.
  • Function: A special coupler, which can fix one shaft to a plane and install other parts on the shaft easily.
  • Package: 2 x 6mm Flange Shaft Coupling + 1 x M3 Mini Hex Wrench + 4 x M3 Fastening Screw
  • See more on Amazon...

Brand: Magic&Shell

Package Dimensions: 1.22 x 2.52 x 3.66 inches (3.1 x 6.4 x 9.3 cm)

Amazon Price: $11.59 | as of 11/15/2018(7:44am pst)
Availibility: Usually ships in 24 hours
List Price: $11.59

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  #3

uxcell 5mm to 8mm Shaft Coupling 30mm Length 25mm Diameter Motor Coupler Aluminum Alloy Joint Connector for DIY Encoder

Model: SYNCE007186   |    Mpn: a16121900ux0460   |    Ean: 0604267459030   |    PartNumber: a16121900ux0460   |   Asin: B06X9TVW64

Description: Super torque can absorb vibration, appropriate a large torque transmission. Wear resistant, high hardness and excellent response. Mainly used for servo motors, spindle, step motor etc.. NOTE: The shaft coupler is not elastic, can not modify the concentricity. Shaft must be located in a straight line. If your equipment is eccentric already, then it will make noise and cause off-centering. Please be cautious before your final purchasing, thank you. Specification: Type: Plum Shaped Size: 30x25mm/ 1.18x0.98inch( L*D) Material: Body: Aluminum Alloy; Sleeve: Polyurethane Main Color: Silver Tone, Red Weight: 32g Package Content: 1 x Plum coupling

Features

  • Shaft Usage: 5mm to 8mm / 0.19 to 0.31 inch
  • Material: Aluminum alloy, polyurethane; Type: Plum shaped
  • Size: 30x25mm/ 1.18x0.98inch( L*D); Main Color: Silver tone, red
  • Flexibility of coupling shaft removes stress between the motor and driving components.
  • The shaft couplers are mainly used for servo motors, spindle, step motor etc.
  • See more on Amazon...

Brand: uxcell   |   Manufacturer: uxcell

Package Dimensions: 1.1 x 3.9 x 5 inches (2.8 x 9.9 x 12.7 cm)

Amazon Price: $9.09 | as of 11/15/2018(7:44am pst)
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  #4

uxcell 7mm Bore 18mm Length Brass Motor Tyre Coupling Joint Hex Coupler Gold Tone

Model: a16121400ux0614   |    Mpn: a16121400ux0614   |    Ean: 0604267501463   |    PartNumber: a16121400ux0614   |   Asin: B06XNRGMRQ

Descriptions: - Made of good quality brass material, Hex head. - The coupling is great for connect your motor of 7mm shaft to the wheel. - Can be used in electric car toy, robot, etc.. Specifications: Product Name: Coupling Joint Shaft Diameter: 7mm (0.28in) Size: 12mm x 18mm (0.47in x 0.71in) (W*L) Top Screw: M4 Side Screw: M4 Material: Brass Net Weight: 13g Main Color: Gold Tone Package Content: 1 x Coupling Joint

Features

  • Shaft Diameter: 7mm (0.28in); Size: 12mm x 18mm (0.47in x 0.71in) (W*L)
  • Top Screw: M4; Side Screw: M4
  • Material: Brass; Net Weight: 13g
  • Main Color: Gold Tone
  • Package Content: 1 x Coupling Joint
  • See more on Amazon...

Brand: uxcell   |   Manufacturer: uxcell

Package Dimensions: 0.4 x 3.8 x 4.1 inches (1.0 x 9.7 x 10.4 cm)

Amazon Price: $2.59 | as of 11/15/2018(7:44am pst)
Availibility:
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  #5

uxcell 5mm to 8mm Shaft Coupling 25mm Length 20mm Diameter Stepper Motor Coupler Aluminum Alloy Joint Connector for 3D Printer CNC Machine DIY Encoder

Model: a16121900ux0389   |    Mpn: a16121900ux0389   |    Ean: 0604267459764   |    PartNumber: a16121900ux0389   |   Asin: B06X99T42R

Description: 5mm to 8mm shaft usage diameter, 25mm length, 20mm diameter, set screw type, beam coupling. Zero backlash. One-piece metallic spring coupling. For little torque shaft connect. Absorption of parallel, angular misalignments and shaft end-play by spring action. Widely used in drive systems for encoders, instrumentation,lead screws, small pumps, feed rollers and anywhere light to medium duty, torsionally flexible coupling is required. Specification: Feature: Spline shaft with coiling clamping Size: 25x20mm/ 0.98x0.79inch( L*D) Material: Aluminum alloy Main Color: Silver tone Weight: 18g Package Content: 1 x Shaft coupling

Features

  • Shaft Usage: 5mm to 8mm / 0.19 to 0.31 inch
  • Material: Aluminum alloy; Size: 25x20mm/ 0.98x0.79inch( L*D)
  • Feature: Spline shaft with coiling clamping; Main Color: Silver tone
  • Flexibility of coupling shaft removes stress between the motor and driving components.
  • The shaft couplers are widely applied to small CNC machines encoding and 3D printers Z shaft coupling, simplifies the debugging difficulty.
  • See more on Amazon...

Brand: uxcell   |   Manufacturer: uxcell

Package Dimensions: 0.91 x 5.98 x 7.91 inches (2.3 x 15.2 x 20.1 cm)

Amazon Price: $7.65 | as of 11/15/2018(7:44am pst)
Availibility: Usually ships in 24 hours
List Price: $7.65

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  #6

uxcell Shaft Coupling 12mm to 12mm Bore L35xD25 Flexible Coupler Joint for Servo Stepped Motor

Model: a18060800ux0125   |    Mpn: a18060800ux0125   |    PartNumber: a18060800ux0125   |   Asin: B07G6MKPND

Mainly used for servo motors, spindle, step motor and so on. Wear resistant ,high hardness and excellent response. Super elastic torque can absorb vibration, appropriate a large torque transmission. Specification: Color: Silver Tone Net Weight: 35g Material: Aluminum Alloy Fixed Type: Clamp Thread Size: M3 Connection Diameter: 12mm to 12mm / 0.47 to 0.47 inch Total Length: 35mm /1.38 inch Outside Diameter : 25mm/ 0.98 inch Package List: 1 x Flexible Shaft Coupler

Features

  • Country of Manufacture: CHINA; Material: Aluminum alloy
  • Net Weight: 35g; Package Content: 1 x Flexible Shaft Coupler
  • Main Color: Silver Tone; Shaft Usage: 12mm to 12mm/0.47 inch to 0.47 inch
  • Total Size: 35 x 25mm / 1.38 inch x 0.98 inch (L*D); Feature: Set screws
  • Thread Size: M3
  • See more on Amazon...

Brand: uxcell   |   Manufacturer: uxcell

Package Dimensions: 1 x 3.5 x 5 inches (2.5 x 8.9 x 12.7 cm)

Amazon Price: $11.30 | as of 11/15/2018(7:44am pst)
Availibility: Usually ships in 24 hours
List Price: $13.32

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  #7

Hard-to-Find Fastener 014973403331 Coarse Rod Coupling Nuts, 5/16-18, Piece-20

Model: 014973403331   |    Mpn: CNS2-030-20   |    Ean: 0738287034929   |    PartNumber: CNS2-030-20   |   Asin: B00L1L4LPC

We stock a wide variety of fasteners ideal for many applications arround the home, farm, business, automotives, and in industry. Most of our fasteners have a light zinc plating over steel giving a more rust resistant finsh. We also sell coated and stainless products for additional rust resistance. We stock many grades of fasteners ranging from low carbon steel on up to hardened, heat treated steel. Not all fasteners are applicable for all applications so be certain to test thouroughly and get the opinion of a licensed building or certified building or structural engineer before relying on these fasteners for any situations where failure would result in damage to property or person.

Features

  • Diameter: 5/16"
  • Length: 1-3/4 inch
  • Material: Steel
  • Finish: Zinc
  • Driver Type: 1/2 Wrench
  • Diameter 1: 5/16 Inch
  • Diameter 2: 1/2 inch
  • Length: 3/4 Inch
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Brand: Hard-to-Find Fastener   |   Manufacturer: Hard-to-Find Fastener

Item Dimensions: 2.13 x 3.13 x 3.5 inches (5.4 x 8.0 x 8.9 cm)   |   Package Dimensions: 2 x 3.1 x 3.7 inches (5.1 x 7.9 x 9.4 cm)

Amazon Price: $16.12 | as of 11/15/2018(7:44am pst)
Availibility: Usually ships in 24 hours
List Price: $17.73

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  #8

Magic&Shell Flange Shaft Coupling High Hardness Metal Axis Bearing Fittings DIY Model Accessory Rigid Flange Guide Shaft Coupler Motor Connector

Asin: B07FLZR169

Type: Flange Shaft Coupling
Metal: Fine plating metal, hardened by heat treatment, and then electroplated
Function: A special coupler, which can fix one shaft to a plane and install other parts on the shaft easily.
Use: Suitable for model shaft connection, perfect accessories for RC Model motor, etc.
Feature: Durable and insulation, make your shaft more stable, easy to install and replace.

Features

  • Type: Flange Shaft Coupling, suitable for model shaft connection, perfect accessories for RC Model motor, etc.
  • Metal: Fine plating metal, hardened by heat treatment, and then electroplated. Durable and insulation, make your shaft more stable, easy to install and replace.
  • Function: A special coupler, which can fix one shaft to a plane and install other parts on the shaft easily.
  • See more on Amazon...

Brand: Magic&Shell

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  #9

uxcell 8mm to 12mm Shaft Coupling 30mm Length 25mm Diameter Stepper Motor Coupler Aluminum Alloy Joint Connector for 3D Printer CNC Machine DIY Encoder

Model: a16121900ux0378   |    Mpn: a16121900ux0378   |    PartNumber: a16121900ux0378   |   Asin: B06X99YZ34

Description: 8mm to 12mm shaft usage diameter, 30mm length, 25mm diameter, set screw type, beam coupling. Zero backlash. One-piece metallic spring coupling. For little torque shaft connect. Absorption of parallel, angular misalignments and shaft end-play by spring action. Widely used in drive systems for encoders, instrumentation,lead screws, small pumps, feed rollers and anywhere light to medium duty, torsionally flexible coupling is required. Specification: Feature: Set screw (coiling clamping) Size: 30x25mm/ 1.18x0.98inch( L*D) Material: Aluminum alloy Main Color: Silver tone Weight: 32g Package Content: 1 x Shaft coupling

Features

  • Shaft Usage: 8mm to 12mm / 0.31 to 0.47 inch
  • Material: Aluminum alloy; Size: 30x25mm/ 1.18x0.98inch( L*D)
  • Feature: Set screws (Coiling Clamping); Main Color: Silver tone
  • Flexibility of coupling shaft removes stress between the motor and driving components.
  • The shaft couplers are widely applied to small CNC machines encoding and 3D printers Z shaft coupling, simplifies the debugging difficulty.
  • See more on Amazon...

Brand: uxcell   |   Manufacturer: uxcell

Package Dimensions: 1.89 x 3.39 x 4.8 inches (4.8 x 8.6 x 12.2 cm)

Amazon Price: $9.10 | as of 11/15/2018(7:44am pst)
Availibility: Usually ships in 24 hours
List Price: $9.10

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  #10

Magic&shell 2-Pack 5mm Flange Shaft Coupling High Hardness Metal Axis Bearing Fittings DIY Model Accessory Rigid Flange Guide Shaft Coupler Motor Connector

 Ean: 0705883157260   |    PartNumber: 43398-23174   |   Asin: B07FLWXFN8

Type: Flange Shaft Coupling
Metal: Fine plating metal, hardened by heat treatment, and then electroplated
Function: A special coupler, which can fix one shaft to a plane and install other parts on the shaft easily.
Use: Suitable for model shaft connection, perfect accessories for RC Model motor, etc.
Feature: Durable and insulation, make your shaft more stable, easy to install and replace.

Specification:
Inner Diameter: 5mm
Cylinder Outer Diameter: 10mm
Cylinder Height: 10mm
Base Diameter: 22mm
Base Height: 2mm
Fastening Screw Hole: M3
Base Fixing Screw Hole: M3

Package:
2 x 5mm Flange Shaft Coupling
1 x M3 Mini Hex Wrench
4 x M3 Fastening Screw

Features

  • Type: Flange Shaft Coupling, suitable for model shaft connection, perfect accessories for RC Model motor, etc.
  • Inner Diameter: 5mm, Cylinder Outer Diameter: 10mm, Cylinder Height: 10mm, Base Diameter: 22mm, Base Height: 2mm, Fastening Screw Hole: M3, Base Fixing Screw Hole: M3
  • Metal: Fine plating metal, hardened by heat treatment, and then electroplated. Durable and insulation, make your shaft more stable, easy to install and replace.
  • Function: A special coupler, which can fix one shaft to a plane and install other parts on the shaft easily.
  • Package: 2 x 5mm Flange Shaft Coupling + 1 x M3 Mini Hex Wrench + 4 x M3 Fastening Screw
  • See more on Amazon...

Brand: Magic&Shell

Package Dimensions: 1.18 x 2.44 x 3.35 inches (3.0 x 6.2 x 8.5 cm)

Amazon Price: $10.99 | as of 11/15/2018(7:44am pst)
Availibility: Usually ships in 24 hours
List Price: $10.99

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  #11

The Hillman Group 5 pc - 3/8-16 Coupling Nuts

 Ean: 0008236929232   |    PartNumber: 1   |   Asin: B00L8SYMQQ

Features

  • 5-Count 3/8-in Zinc-Plated Standard (SAE) Regular Nuts
  • Designed to secure 2 parts together, usually threaded rod
  • Hex-shaped on the outside so a wrench can tighten or loosen it
  • Nut Diameter 3/8-in. Nut Thread Size 16.
  • Zinc-plated finish
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Brand: The Hillman Group   |   Manufacturer: The Hillman Group

Package Dimensions: 0.5 x 4 x 4 inches (1.3 x 10.2 x 10.2 cm)

Amazon Price: $7.53 | as of 11/15/2018(7:44am pst)
Availibility: Usually ships in 1-2 business days
List Price: $7.53

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  #12

Simmons 946 Well Point Drive Coupling

Model: 946   |    Mpn: 946   |    Ean: 0008391017065   |    PartNumber: 946   |   Asin: B000DZFWCS

946 Features: -Drive coupling.-Heavy, galvanized coupling assures better driving of well points.-Designed to provide tight joint at the pipe.-Extra heavy duty for tough driving conditions.-Use with drive well points 1721-1 (2033-0064) or 1722-1 (2033-0114).-2.5" H x 2.5" W x 1.75" D, 0.96 lbs.

Features

  • Heavy, galvanized coupling assures better driving of well points
  • Designed to provide a tight joint at the pipe
  • Extra heavy-duty for tough driving conditions
  • Use with Drive Well Points 1721-1 (2033-0064) or 1722-1 (2033-0114)
  • 1-1/4-Inch
  • See more on Amazon...

Brand: Simmons   |   Manufacturer: Simmons

Item Dimensions: 2.5 x 2.5 x 1.75 inches (6.4 x 6.4 x 4.4 cm)   |   Package Dimensions: 1.9 x 2 x 2.7 inches (4.8 x 5.1 x 6.9 cm)

Amazon Price: $5.84 | as of 11/15/2018(7:44am pst)
Availibility: Usually ships in 24 hours
List Price: $9.99

Warranty: N

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  #13

The Hillman Group 180210 Coupling Nut, 1/4 - 20, 50-Pack

Model: 180210   |    Mpn: 180210   |    Ean: 0008236073140   |    PartNumber: 180210   |   Asin: B003VFVVHW

Coupling Nuts are long nuts used to connect pieces of threaded rod or other male threaded fasteners. They are similar to hex nuts with extreme height measurements giving it length. The coupling nut joins two pieces of threaded rod.

Features

Brand: Hillman   |   Manufacturer: The Hillman Group

Item Dimensions: 2.1 x 2.9 x 3.1 inches (5.3 x 7.4 x 7.9 cm)   |   Package Dimensions: 1.9 x 2.5 x 3 inches (4.8 x 6.4 x 7.6 cm)

Amazon Price: $12.53 | as of 11/15/2018(7:44am pst)
Availibility: Usually ships in 24 hours
List Price: $14.61

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  #14

HHIP 3900-1183 Coupling Nut, 5/16-18" x 7/8"

Model: 3900-1183   |    Mpn: 3900-1183   |    Ean: 0769053016672   |    PartNumber: 3900-1183   |   Asin: B00R16038A

Black oxide finish.

Features

Brand: HHIP   |   Manufacturer: HHIP

Item Dimensions: 6 x 6 x 6 inches (15.2 x 15.2 x 15.2 cm)   |   Package Dimensions: 0.9 x 2 x 3 inches (2.3 x 5.1 x 7.6 cm)

Amazon Price: $2.50 | as of 11/15/2018(7:44am pst)
Availibility: Usually ships in 24 hours
List Price: $2.50

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  #15

uxcell 8mm to 10mm Shaft Coupling 30mm Length 25mm Diameter Stepper Motor Coupler Aluminum Alloy Joint Connector for 3D Printer CNC Machine DIY Encoder

Model: a16121900ux0372   |    Mpn: a16121900ux0372   |    PartNumber: a16121900ux0372   |   Asin: B06X9QLQGR

Description: 8mm to 10mm shaft usage diameter, 30mm length, 25mm diameter, set screw type, beam coupling. Zero backlash. One-piece metallic spring coupling. For little torque shaft connect. Absorption of parallel, angular misalignments and shaft end-play by spring action. Widely used in drive systems for encoders, instrumentation,lead screws, small pumps, feed rollers and anywhere light to medium duty, torsionally flexible coupling is required. Specification: Feature: Set screw (coiling clamping) Size: 30x25mm/ 1.18x0.98inch( L*D) Material: Aluminum alloy Main Color: Silver tone Weight: 32g Package Content: 1 x Shaft coupling

Features

  • Shaft Usage: 8mm to 10mm / 0.31 to 0.39 inch
  • Material: Aluminum alloy; Size: 30x25mm/ 1.18x0.98inch( L*D)
  • Feature: Set screws (Coiling Clamping); Main Color: Silver tone
  • Flexibility of coupling shaft removes stress between the motor and driving components.
  • The shaft couplers are widely applied to small CNC machines encoding and 3D printers Z shaft coupling, simplifies the debugging difficulty.
  • See more on Amazon...

Brand: uxcell   |   Manufacturer: uxcell

Package Dimensions: 1.18 x 3.82 x 4.8 inches (3.0 x 9.7 x 12.2 cm)

Amazon Price: $7.73 | as of 11/15/2018(7:44am pst)
Availibility: Usually ships in 24 hours
List Price: $8.57

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  #16

uxcell 6mm to 8mm Shaft Coupling 25mm Length 18mm Diameter Stepper Motor Coupler Aluminum Alloy Joint Connector for 3D Printer CNC Machine DIY Encoder

Model: SYNCE016607   |    Mpn: a16121900ux0353   |    Ean: 0604267459467   |    PartNumber: a16121900ux0353   |   Asin: B06X99P2XK

Description: 6mm to 8mm shaft usage diameter, 25mm length, 18mm diameter, set screw type, beam coupling. Zero backlash. One-piece metallic spring coupling. For little torque shaft connect. Absorption of parallel, angular misalignments and shaft end-play by spring action. Widely used in drive systems for encoders, instrumentation,lead screws, small pumps, feed rollers and anywhere light to medium duty, torsionally flexible coupling is required. Specification: Feature: Set screw (coiling clamping) Size: 25x18mm/ 0.98x0.71inch( L*D) Material: Aluminum alloy Main Color: Silver tone Weight: 14g Package Content: 1 x Shaft coupling

Features

  • Shaft Usage: 6mm to 8mm / 0.24 to 0.31 inch
  • Material: Aluminum alloy; Size: 25x18mm/ 0.98x0.71 inch( L*D)
  • Feature: Set screws (Coiling Clamping); Main Color: Silver tone
  • Flexibility of coupling shaft removes stress between the motor and driving components.
  • The shaft couplers are widely applied to small CNC machines encoding and 3D printers Z shaft coupling, simplifies the debugging difficulty.
  • See more on Amazon...

Brand: uxcell   |   Manufacturer: uxcell

Package Dimensions: 0.71 x 3.9 x 4.88 inches (1.8 x 9.9 x 12.4 cm)

Amazon Price: $4.30 | as of 11/15/2018(7:44am pst)
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  #17

3/8"-24 SAE Stainless Steel Threaded Rod Coupling

 Ean: 0749273267269   |    PartNumber: 3824TRCSS   |   Asin: B015RK24GK

3/8"-24 S.A.E. Stainless Steel Threaded Rod Coupling

Features

Brand: Yellow Woods   |   Manufacturer: Yellow Woods

Amazon Price: $2.04 | as of 11/15/2018(7:44am pst)
Availibility: Usually ships in 24 hours
List Price: $7.19

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  #18

Grohe 28637XX0 Coupling Gray

Model: 28637XX0   |    Mpn: 28637XX0   |    Ean: 4005176093913   |    PartNumber: 28637XX0   |   Asin: B000P0GD5Q

28637XX0 Features: -2.5 gpm Maximum flow rate at 14.5 - 90 psi. -Connector for new hand shower and hose. -Water saving. Application: -Tub shower/Shower. Product Type: -Connector. Dimensions: Overall Product Weight: -0.07 lbs.

Features

Brand: GROHE   |   Manufacturer: Grohe

Item Dimensions: 1 x 1 x 1 inches (2.5 x 2.5 x 2.5 cm)   |   Package Dimensions: 1 x 3.3 x 3.5 inches (2.5 x 8.4 x 8.9 cm)

Amazon Price: $10.61 | as of 11/15/2018(7:44am pst)
Availibility: Usually ships in 24 hours
List Price: $16.00 | Used Price: $40.17

Warranty: Limited Lifetime Warranty

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  #19

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

Model: 014973403393   |    Mpn: CNS2-039-12   |    Ean: 0738287034950   |    PartNumber: CNS2-039-12   |   Asin: B00L1L4PL2

We stock a wide variety of fasteners ideal for many applications arround the home, farm, business, automotives, and in industry. Most of our fasteners have a light zinc plating over steel giving a more rust resistant finsh. We also sell coated and stainless products for additional rust resistance. We stock many grades of fasteners ranging from low carbon steel on up to hardened, heat treated steel. Not all fasteners are applicable for all applications so be certain to test thouroughly and get the opinion of a licensed building or certified building or structural engineer before relying on these fasteners for any situations where failure would result in damage to property or person.

Features

  • Diameter: 1/2"
  • Length: 1-3/4 inch
  • Material: Steel
  • Finish: Zinc
  • Driver Type: 11/16 Wrench
  • Diameter 1: 1/2 inch
  • Diameter 2: 11/16 Inch
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Brand: Hard-to-Find Fastener   |   Manufacturer: Hard-to-Find Fastener

Item Dimensions: 2.13 x 3.13 x 3.5 inches (5.4 x 8.0 x 8.9 cm)   |   Package Dimensions: 2.3 x 3.5 x 3.6 inches (5.8 x 8.9 x 9.1 cm)

Amazon Price: $13.63 | as of 11/15/2018(7:44am pst)
Availibility: Usually ships in 24 hours
List Price: $18.79

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  #20

Uxcell a16041400ux0820 M8 Female Thread Straight Fitting Hex Rod Coupling Nuts Silver Tone 10 Pcs (Pack of 10)

Model: a16041400ux0820   |    Mpn: a16041400ux0820   |    Ean: 0602451760474   |    PartNumber: a16041400ux0820   |   Asin: B01IZ16EO6

Female thread, construction for greater durability, ensure reliable connection. Connect conveniently with the quick coupler. All Connectors are fully threaded internally. Connectors are used to connect two threaded parts together.

Features

  • Thread Size: M8/0.3"; Product Name: Hex Rod Coupling Nut
  • Material: Metal; Weight: 156g
  • Package Content: 10 x Hex Rod Coupling Nut; Main Color: Silver Tone
  • Height: 30mm/1.2; Pitch: 1.25mm
  • Outside Diameter: 12mm/0.47
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Brand: uxcell   |   Manufacturer: uxcell

Package Dimensions: 2 x 6 x 8 inches (5.1 x 15.2 x 20.3 cm)

First Available: 2018-08-09

Amazon Price: $6.48 | as of 11/15/2018(7:44am pst)
Availibility: Usually ships in 24 hours
List Price: $8.06

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