1/4-28 x 3/4 Cup Point 18-8 Stainless Steel Socket Set Screw with Nylon Insert is built for assemblies that need both cup-point holding action and prevailing torque. One interface helps hold the collar or hub against movement; the other adds friction in the thread so vibration is less likely to loosen the screw. The stainless construction supports equipment that needs a clean finish without claiming 316-level chloride performance.
Typical uses include stainless handle hubs, knob shafts, and operator controls, where the set screw must hold position without an external head. A nylon tip protects the shaft surface from marring, while a nylon insert locks the screw in its thread; those are different features. This 18-8 family is not a heat-treated alloy-steel substitute; review the alloy version where seating torque is the priority.
Cold Headers installs the locking pellet in-house on supported socket set screw sizes, with odd-size requests handled through quoting. Review the thread size, length, hex key size, point style, and set-screw pellet location before matching the part to a service record or drawing.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
