
3/8-16 x 1 1/4 Knurled Point Alloy Steel Socket Set Screw is intended for installations where the internal hex drive keeps access compact and the knurled point supplies bite.
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 3/8-16 x 1 1/4 include machine repairs, replacement assemblies, and point-style controlled maintenance work; it may also fit fixtures, stops, and removable parts that still need a positive point bite where a headless set screw keeps the outside of the component clear while point contact provides the holding action.
The 3/8-16 thread designation identifies a UNC inch thread with 16 threads per inch, and the 1 1/4 in. length should be checked against tapped depth, contact location, and drive access.
Because the serrations are part of the holding method, the point style should be checked along with thread and length. Cold Headers helps buyers keep specialty point geometry, exact size, and material together during quoting.