1/4-28 x 5/8 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. The stainless construction supports equipment that needs a clean finish without claiming 316-level chloride performance.
In sensor brackets, instrument housings, and positioning components, the internal hex drive allows adjustment from the end of the tapped hole. 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: 1/4-28
- Length: 5/8 in.
- Drive: Internal Hex
- Hex Key Size: 1/8 in.
- Locking Feature: Nylon insert providing prevailing torque
- Nylon Insert Diameter (P): 7/64 in.
- Nylon Insert Location (N): 3/16 in. +/-1/2 pitch
- Dimensional Standard: ASME B18.3
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
