3/8-16 x 1/4 18-8 Stainless Steel Button Head Socket Cap Screw with Nylon Insert adds a nylon prevailing-torque element to a button head socket cap screw format. The locking pellet adds a prevailing-torque feature while the internal hex drive keeps installation compact from the top side.
The rounded button head can reduce exposed edges, spread bearing load over a broader face, and avoid counterbore machining when the assembly accepts a raised dome. Typical applications include retrofit vibrating guards, replacement covers, and maintenance panels, where exposed hardware benefits from a smooth dome and exact thread-length match.
Slight magnetism from cold working can be normal for 18-8 stainless, so final selection should reflect the mating parts and environmental exposure. Plain 18-8 Button Head Socket Cap Screws may fit torque-once joints where the nylon insert is not required. Cold Headers has supplied specialty socket fasteners since 1962 and helps buyers source exact stainless sizes and uncommon lengths.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.