5/16-18 x 2 3/4 Knurled Point Alloy Steel Socket Set Screw is specified when the drawing calls for an alloy steel set screw with a knurled cup point and compact drive access.
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 5/16-18 x 2 3/4 include repair bins, equipment rebuilds, and exact-size set screw substitutions; it may also fit tooling details, clamp collars, and positioning hardware where a headless set screw keeps the outside of the component clear while point contact provides the holding action.
The 5/16-18 thread designation identifies a UNC inch thread with 18 threads per inch, and the 2 3/4 in. length should be checked against tapped depth, contact location, and drive access.
The knurled cup point is usually chosen for localized bite rather than for a locating-hole function. Cold Headers helps buyers keep specialty point geometry, exact size, and material together during quoting.
