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Black Plain Socket Set Screws — 1/4 in. Diameter x 5/8 in. Length, 10-Pack
- Mfg.#
- 4658
- Sku#
- 6387492
- Features a pack of 10 black socket set screws for multiple fastenings
- Designed for 1/4"-20 x 5/8" size to fit 1/4"-20 tapped holes
- Suitable for securing an object within or against another component
- Made of steel with a plain black finish for basic corrosion resistance
- Features USS coarse 1/4"-20 threading for common coarse-thread applications
* Estimated stock levels as of Sat, Apr 11, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.
Description
This is a black socket set screw designed for securely fastening components when a flush, headless connection is needed, ideal for machinery, fixtures, and woodworking projects where a concealed hold is preferred. Made of steel with a plain black finish, the screw has a 1/4" diameter and a 5/8" length, with 1/4"-20 USS coarse threads that engage quickly and reliably in tapped holes and threaded inserts. Use it to lock pulleys, secure collars on shafts, fasten hardware in metal or wood assemblies, or make fine adjustments in equipment without adding a protruding head. The compact, headless design lets parts sit flush while providing strong clamping force, and the conventional coarse thread makes it a practical choice for general-purpose fastening tasks where durability and a discreet appearance matter.
Specifications
General
| Color | Black |
|---|---|
| Drive Style | Socket |
| Finish | Plain |
| Material | Steel |
| Pack Qty | 10 |
| Thread Type | USS Coarse |
| Thread per Inch | 20 |
| Type | Socket Set Screw |
Dimensions
| Diameter | 1/4" |
|---|---|
| Length | 5/8 in |
| Size | 1/4"-20 x 5/8" |
Manufacturing Details
The following information is subject to change without notice
| Prop 65 Warning |
WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov
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