1/4 x 3 Alloy Steel Socket Head Shoulder Screw (Stripper Bolt) with Nylon Insert is commonly specified where a shoulder must guide, locate, or support a moving component instead of acting only as a clamp. The shoulder screw design separates the functional bearing or locating surface from the threaded retention point. Typical applications include assembly equipment, pivoting components, locating nests, and serviceable machine designs. The nylon insert adds resistance to loosening in vibration-prone or movement-related assemblies without changing the basic shoulder function. Industrial distributors can position this as a shoulder screw and stripper bolt option for tooling, fixture, and maintenance demand. The design is useful when the fastener is part of the positioning system rather than only a threaded clamping point. 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.