6-32 x 2 1/2 18-8 Stainless Steel Flat Head Cap Screw with Nylon Insert pairs ordinary moisture resistance with a nylon pellet for thread-friction locking. When installed in the correct countersink, the flat head leaves little exposed hardware for covers, panels, or moving material to catch. Overall-length measurement matters on countersunk joints because the head occupies part of the thickness stack.
For bracket faces, panel-mounted hardware, or smooth machine surfaces, confirm countersink geometry, thread engagement, and whether the nylon insert suits the service conditions. For a low-profile head without cutting a countersink, compare 18-8 Button Head Socket Cap Screws with Nylon Insert.
The nylon pellet presses against the mating thread to provide prevailing torque without changing the countersunk head geometry. Cold Headers can help verify the exact 18-8 flat head nylon-insert configuration before quoting pricing and availability.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.