5/8 x 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. Unlike a standard socket head cap screw, the unthreaded shoulder is the working surface for bearing contact, location, or controlled travel. Typical applications include tool and die work, mold-related fixtures, guide mechanisms, and service parts. For maintenance teams, the nylon insert can help address loosening concerns in equipment subject to vibration or repeated motion. Purchasing managers get a clear shoulder-size callout for RFQ sourcing and replacement work. 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.