4-40 x 7/16 Oval Point Alloy Steel Socket Set Screw with Nylon Insert is specified when tangent contact and thread-level locking are both required in a headless fastener. Oval point geometry favors adjustable contact and re-seating rather than maximum bite into the mating part. Specify the heat-treated alloy steel body with nylon pellet when the print calls for mechanical set screw hardware, not a stainless substitute.
Fine-thread 7/16-20 and 5/8-18 rows help match uncommon oval point locking requirements that are easy to mis-source. Alloy steel is not the corrosion-focused option, so use protective oiling or a stainless request when exposure requires it.
Cold Headers has supplied specialty socket fasteners since 1962, with separate catalog language for each set screw point style. Check thread size, length, socket size, pellet dimensions, groove or seat condition, and surface-marking tolerance before substitution.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
