5/16 x 3/8 Alloy Steel Socket Head Shoulder Screw (Stripper Bolt) with Nylon Insert is frequently selected where dies, fixtures, cams, or linkages require a shoulder surface for repeatable motion. The socket head allows internal hex drive access, while the shoulder provides the surface used by the assembly. Typical applications include cams, linkages, pivot arms, guide blocks, and machine stops. The nylon insert is useful in assemblies where a shoulder screw or stripper bolt must stay seated while nearby components move or cycle. Industrial distributors can position this as a shoulder screw and stripper bolt option for tooling, fixture, and maintenance demand. This product family helps support controlled movement in fixtures, guides, pivots, and stops. Common sourcing contexts include replacement maintenance, fixture construction, and OEM production support. Call Cold Headers at 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.