5/16-18 x 3/8 Cup Point 18-8 Stainless Steel Socket Set Screw with Nylon Insert helps address both component slip and screw back-out in one specified item. This double-lock arrangement separates the shaft-holding role of the cup point from the thread-locking role of the nylon insert. 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. For 316 stainless with a nylon insert, treat the requirement as a non-catalog request that Cold Headers can quote.
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.
Technical Highlights
- Point: Cup point, approx. 0.55-0.62 x nominal dia.
- Material: 18-8 Stainless Steel
- Thread Size: 5/16-18
- Length: 3/8 in.
- Drive: Internal Hex
- Hex Key Size: 5/32 in.
- Locking Feature: Nylon insert providing prevailing torque
- Nylon Insert Diameter (P): 1/8 in.
- Nylon Insert Location (N): 7/32 in. +/-1/2 pitch
- Dimensional Standard: ASME B18.3
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
