1/4-20 x 5/16 Cup Point 18-8 Stainless Steel Socket Set Screw with Nylon Insert pairs a cup point for shaft contact with a nylon pellet in the thread. The cup point's hollow rim bears on the shaft or mating part, while the nylon insert presses against the female thread to help resist back-out. For final material selection, consider moisture, cleaning exposure, mating material, and whether 18-8 is suitable for the service conditions.
For small sprocket hubs, couplings, or repair assemblies, check point contact, threaded engagement, and drive access before installation. If an all-metal holding feature is preferred, review Knurled Point 18-8 Socket Set Screws for mechanical ratchet-style grip.
Cold Headers supports hard-to-find socket set screw sourcing, including uncommon lengths and nylon-insert configurations. 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.
