5/8 x 1 3/4 Alloy Steel Socket Head Shoulder Screw (Stripper Bolt) with Nylon Insert supports assemblies that need a bearing surface, pivot point, spacer, stop, or locating feature in one fastener. 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 supports resistance to loosening while the shoulder continues to provide the bearing, guide, spacer, or locating surface. Purchasing managers get a clear shoulder-size callout for RFQ sourcing and replacement work. 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.