5/16-18 x 2 3/4 1960 Series 18-8 Stainless Steel Socket Head Cap Screw with Nylon Insert provides a cataloged stainless option for cap-screw joints that specify a nylon locking element. The pellet presses against the mating thread to provide prevailing torque without changing the socket head geometry.

In HVAC equipment in humid plants, damper hardware, or service panels, the internal hex drive keeps installation compact while the insert adds thread-friction locking action. The nylon element gives the joint a locking feature, but it also limits service temperature compared with an all-metal socket screw.

For rounded exposed heads with the same locking concept, review 18-8 Button Head Socket Cap Screws with Nylon Insert. Cold Headers supports industrial maintenance and OEM sourcing teams when difficult-to-find stainless socket products are specified.

Technical Highlights

• Series: 1960 Series
• Material: 18-8 Stainless Steel
• Thread Size: 5/16-18
• Length: 2 3/4 in.
• Drive Type: Internal Hex
• Locking Feature: Nylon insert providing prevailing torque
• Nylon Insert Diameter (P): 1/8 in.
• Nylon Insert Location (N): 13/64 in. +/-1/2 pitch
• Head Dimensions: ASME B18.3, 1960 Series

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.