Supergrit Abrasives

1/4" smooth female to 1/4" smooth female coupler W/set screws

1/4" smooth female to 1/4" smooth female coupler W/set screws - Main image
$4.23 $6.5 In stock

The Supergrit Abrasives 1/4" smooth female to 1/4" smooth female coupler with set screws is a straightforward connector for joining two 1/4" smooth fittings. It is listed under the Supergrit-Dev brand and carries the SKU code COUPEXT.

  • Connects 1/4" smooth female to 1/4" smooth female
  • Includes set screws
  • Brand: Supergrit-Dev
  • SKU: COUPEXT
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Sebastian ★★★★★

The set screws on this coupler grip tight without stripping, which was a nice surprise. Installed it to connect two extension rods for a machining setup, and the fit was snug with zero wobble. Exactly what I needed for a clean, secure connection.

Ryan V. ★★★★★

The threads on this coupler are clean and precise, made attaching two smooth shafts quick and easy. I used it to extend a control rod, and the set screws hold firm under vibration. Solid little connector for the price.

Jacob Z. ★★★★★

The set screws are a nice touch—keeps the coupler secure without any wobble. I used it to connect two hoses in my shop and it hasn't leaked at all. Simple, solid, and does exactly what it should.