1/2-20 x 2 1/4 Knurled Point Alloy Steel Socket Set Screw suits serviceable equipment where a plain cup point may be less desirable under repeated motion.
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 2 1/4 include automation equipment, fixture blocks, and serviceable machine covers; it may also fit gears, pulleys, sprockets, and adjustable stops 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 2 1/4 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 maintenance and purchasing teams identify the requested set screw without turning it into a generic substitute.
