3/8-16 x 5/8 Alloy Steel Button Head Socket Cap Screw with Nylon Insert is a socket-driven fastener for assemblies that need a rounded low-profile head plus a built-in prevailing-torque feature. The insert provides a prevailing-torque feature while preserving the compact top-side tool access expected from an internal hex button head screw.
Button head geometry is useful when clearance, appearance, and lower head height matter more than using a standard socket head cap screw profile. In packaging machinery, conveyor equipment, and production cells, the internal hex socket drive allows tool access from above while the nylon insert adds frictional resistance at the threads. Engineers should confirm that the selected size, low-profile button head, and insert behavior match the assembly before substituting from a non-locking screw.
Cold Headers provides catalog depth for specialty socket fasteners and helps purchasers identify the correct alloy steel button head nylon insert size. For adjacent selections, buyers often compare standard Alloy Steel Button Head Socket Cap Screws, Alloy Steel Socket Head Cap Screws, and Alloy Steel Flat Head Socket Cap Screws when checking head style, material, locking feature, thread size, or nearby lengths.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
