1/2-20 x 7/8 Knurled Point Alloy Steel Socket Set Screw is used in mechanical assemblies where the set screw point must engage the mating part without an external head.

The serrated knurled cup point bites the mating surface and helps resist vibration-driven back-out in blind holes, softer materials, collars, hubs, and adjustment locations.

Typical review points for 1/2-20 x 7/8 include hub retention, shaft-mounted accessories, and threaded adjustment locations; it may also fit industrial equipment where the screw installs flush within the tapped component where a headless set screw keeps the outside of the component clear while point contact provides the holding action.

The 1/2-20 thread designation identifies a UNF inch thread with 20 threads per inch, and the 7/8 in. length should be checked against tapped depth, contact location, and drive access.

This style should be reviewed against shaft material, access, adjustment frequency, and the amount of surface marking the assembly can tolerate. Cold Headers helps maintenance and purchasing teams identify the requested set screw without turning it into a generic substitute.

Technical Highlights

• Point Style: Knurled Point
• Material: Alloy Steel
• Thread Size: 1/2-20
• Length: 7/8 in.
• Thread Series: UNF
• Threads Per Inch: 20
• Drive Type: Internal Hex