5/16-18 x 1/2 Flat Point Alloy Steel Socket Set Screw with Nylon Insert uses a flat point to protect finished or hardened mating surfaces while the insert adds thread friction. A prepared flat on the shaft gives the point a full-width seat and improves holding contact without penetration. Use the heat-treated alloy steel body with the nylon locking pellet where the application calls for mechanical fastening rather than stainless material.
Drive collars and light hub assemblies may specify this style when shaft protection matters more than a point bite. When maximum bite matters more than shaft protection, compare Cup Point Alloy Set Screws with Nylon Insert.
Cold Headers installs nylon locking pellets in-house at its Chicago facility for this flat point set screw family. Since 1962, Cold Headers has helped buyers sort closely related socket products that can be easy to confuse. Check thread size, length, socket size, pellet dimensions, shaft-flat condition, and surface-marking tolerance before substitution.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
