1/4 x 4 1/4 Alloy Steel Socket Head Shoulder Screw (Stripper Bolt) with Nylon Insert offers a practical solution when tooling or machine components need both socket-drive retention and a functional shoulder. The important engineering feature is the shoulder, which supports positioning and movement while the threaded end retains the fastener. Typical applications include machine building, production fixtures, repair programs, and replacement applications. The nylon insert supports resistance to loosening while the shoulder continues to provide the bearing, guide, spacer, or locating surface. Industrial distributors can position this as a shoulder screw and stripper bolt option for tooling, fixture, and maintenance demand. The socket head shoulder screw format is well suited to serviceable machinery where access and repeatable location are both important. It is appropriate for buyers comparing shoulder screws by exact shoulder diameter, shoulder length, material, and insert feature. Call Cold Headers at 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.