4-40 x 1 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. Slight magnetism from cold working can be normal for 18-8 stainless, so selection should reflect the actual assembly environment and mating hardware.
For countersunk installations, 18-8 Flat Head Socket Cap Screws with Nylon Insert keep the locking feature in a different head style. Cold Headers supports industrial maintenance and OEM sourcing teams when difficult-to-find stainless socket products are specified. The 1960 Series name identifies the modern ASME B18.3 head-proportion standard for socket head cap screws, successor to the older 1936 series, not a year of manufacture.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
