1/2-13 x 3/8 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. For final material selection, consider moisture, cleaning exposure, mating material, and whether 18-8 is suitable for the service conditions.
Typical uses include collars and couplings on washdown conveyors, set collars, and shaft-mounted guides, 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.
Since 1962, Cold Headers has helped industrial buyers locate specialty socket products and replacement 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.
Technical Highlights
- Point: Cup point, approx. 0.55-0.62 x nominal dia.
- Material: 18-8 Stainless Steel
- Thread Size: 1/2-13
- Length: 3/8 in.
- Drive: Internal Hex
- Hex Key Size: 1/4 in.
- Locking Feature: Nylon insert providing prevailing torque
- Nylon Insert Diameter (P): 5/32 in.
- Nylon Insert Location (N): 9/32 in. +/-1/2 pitch
- Dimensional Standard: ASME B18.3
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
