4-48 x 1/8 Knurled Point Alloy Steel Socket Set Screw identifies the exact thread and length for a knurled point socket set screw used in machine hardware.
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 4-48 x 1/8 include industrial equipment where the screw installs flush within the tapped component; it may also fit automation equipment, fixture blocks, and serviceable machine covers where a headless set screw keeps the outside of the component clear while point contact provides the holding action.
The 4-48 thread designation identifies a inch-series inch thread with 48 threads per inch, and the 1/8 in. length should be checked against tapped depth, contact location, and drive access.
For replacement work, match the point style before comparing only diameter and length. Cold Headers supports socket fastener sourcing where point geometry affects fit.
