3/8 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. This stripper bolt format is chosen when a mating part must ride, pivot, stop, or space against the shoulder. Typical applications include fixture plates, sliding elements, guide rails, and repeatable locating features. The insert feature gives buyers a nylon-insert shoulder screw option for applications where retention matters alongside guided movement. Machine builders can use the internal hex drive and shoulder geometry in compact assemblies that still require service access. 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.