4-40 x 7/16 Cone Point Alloy Steel Socket Set Screw with Nylon Insert is designed for headless fastening locations that need a pointed seat and added thread friction. A spotted shaft gives the point a defined pocket, so the set screw can locate more positively during installation. Use this alloy steel body with the nylon locking pellet where the drawing calls for a mechanical set screw, not a corrosion-focused stainless part.
Replacement assemblies with dimpled shafts can keep the original point style while adding a nylon insert for thread friction.
In-house pellet installation helps Cold Headers support nylon-insert requirements that are easy to confuse with plain cone point screws. Cold Headers supports distributor, OEM, and MRO sourcing when the item has to be defined by size, point, material, drive, and insert. Review thread size, length, hex key size, point style, and mating-surface marking tolerance before replacing it with another set screw.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
