4-40 x 1/2 Cup Point 18-8 Stainless Steel Socket Set Screw with Nylon Insert places the cup rim at the workpiece and the nylon insert at the mating thread. The point focuses contact at the work surface, and the pellet creates prevailing torque after the screw is driven into the tapped hole. Use 18-8 stainless where the drawing calls for stainless material in indoor machinery, washdown-adjacent equipment, or humid service.
Typical uses include pump and mixer shafts, drive collars, and equipment repairs, where the set screw must hold position without an external head. For torque-once settings without a pellet, compare 18-8 Socket Set Screws in the appropriate point style.
Need the pellet in a non-catalog size? Cold Headers can review supported in-house pelletizing requests. 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.
