For shaft retention that needs both a cup point and thread locking, the 5/16-18 x 3/16 Cup Point Alloy Steel Socket Set Screw with Nylon Insert identifies the exact alloy size. The nylon pellet works in the thread path, so it is different from a nylon tip that is intended to contact the shaft surface.
Plant maintenance repairs often need the exact thread, length, cup point, and locking feature shown on the service record. Confirm thread size, length, hex key size, cup point geometry, pellet diameter, and pellet location before substituting another set screw.
For unusual lengths or deeper alloy sizes, Cold Headers keeps the part defined by thread, length, point style, drive, and locking feature. Knurled point alloy socket set screws provide an all-metal ratchet-style grip where a nylon insert is not the desired locking method.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.