Supergrit Abrasives

5/8-11(threaded female) to 1/4" (smooth female) 2" LONG w/Set screw Coupler

5/8-11(threaded female) to 1/4" (smooth female) 2" LONG w/Set screw Coupler - Main image
5/8-11(threaded female) to 1/4" (smooth female) 2" LONG w/Set screw Coupler - View 2
$14.74 $22 In stock

5/8"-11 Female Thread to 1/4" Smooth Female – 2" Long Coupler with Set Screw

This 2" long coupler features a 5/8"-11 female threaded end and a 1/4" smooth female bore, allowing you to securely adapt tools and accessories. The built-in set screw ensures a tight hold on 1/4" shank accessories.

Use this coupler to attach items such as flap wheels or other 1/4" shank tools to equipment with a 5/8"-11 male thread, such as a bench motor or similar rotary tool.

Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

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

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

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

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

View policy

Customer Reviews (4.6 / 5 · 5 reviews)

Emily ★★★★★

I needed something long enough to bridge an awkward gap on my camera rig, and this 2-inch coupler fit perfectly. The 5/8-11 threaded end screwed on smoothly, and the set screw held tight without any wobble.

Ella X. ★★★★★

The set screw is what sold me—it locks the 1/4" smooth side in place without any wobble. The 2" length gives just enough reach to connect things in tight spots. Exactly what I needed for a quick adapter job.

Riley H. ★★★★★

Finally found a coupler that actually fits my mic stand’s 5/8-11 thread without any wobble, and the set screw locks it tight. The 2-inch length gives me plenty of reach for my boom arm. No more janky adapters.