4-40 x 5/16 Half Dog Point Alloy Steel Socket Set Screw with Nylon Insert uses a short cylindrical locating stub to register into a drilled seat, slot, or groove. Because the point registers into a prepared feature, check the shaft, hub, or fixture detail before substituting a cup point style.
Fixture stops that register in milled slots can use the stub for repeatable placement while the insert supports the setting. Check mating feature, hex access, screw length, and marking tolerance. If there is no drilled seat and the screw must grip a plain shaft, Cup Point Alloy Set Screws with Nylon Insert are the comparison family.
Cold Headers has supplied specialty socket fasteners since 1962 and keeps point style, insert feature, thread, and length tied to the exact item. Review insert dimensions, hex key size, and ASME B18.3 before ordering this alloy steel socket set screw.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
