1/2 x 5 Alloy Steel Socket Head Shoulder Screw (Stripper Bolt) with Nylon Insert gives engineers a stripper bolt option for applications where the shoulder geometry is central to movement or location. The socket head allows internal hex drive access, while the shoulder provides the surface used by the assembly. Typical applications include tool and die work, mold-related fixtures, guide mechanisms, and service parts. The nylon insert supports resistance to loosening while the shoulder continues to provide the bearing, guide, spacer, or locating surface. Repair technicians may source this part for replacement applications where motion control and retention both matter. 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.