5/8 x 3 3/4 Alloy Steel Socket Head Shoulder Screw (Stripper Bolt) with Nylon Insert is designed for assemblies requiring a shoulder screw that can fasten while also serving as a guide, pivot, or spacer. The shoulder screw design separates the functional bearing or locating surface from the threaded retention point. Typical applications include conveyor equipment, assembly fixtures, spacer locations, and controlled-travel mechanisms. The nylon insert is useful in assemblies where a shoulder screw or stripper bolt must stay seated while nearby components move or cycle. Machine builders can use the internal hex drive and shoulder geometry in compact assemblies that still require service access. As a stripper bolt, it can support tooling and guided-motion applications where the shoulder is part of the operating interface. 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.