4-40 x 1 1/2 1960 Series 18-8 Stainless Steel Socket Head Cap Screw with Nylon Insert is a stainless socket cap screw for assemblies that combine cleaning exposure with motion or vibration. The pellet presses against the mating thread to provide prevailing torque without changing the socket head geometry.
Typical applications include instrumentation panels, sensor brackets, and compact machine frames, where the exact thread and length help match drawings, service records, and replacement needs. Because 18-8 is not heat-treated for maximum clamp load, compare the 1960 Series Alloy Steel SHCS with Nylon Insert when joint strength is the governing requirement.
For countersunk installations, 18-8 Flat Head Socket Cap Screws with Nylon Insert keep the locking feature in a different head style. Cold Headers has supplied specialty socket fasteners since 1962 and helps source exact stainless sizes and uncommon lengths.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
