3/4 x 3/8 Alloy Steel Socket Head Shoulder Screw (Stripper Bolt) with Nylon Insert is frequently selected where dies, fixtures, cams, or linkages require a shoulder surface for repeatable motion. The important engineering feature is the shoulder, which supports positioning and movement while the threaded end retains the fastener. 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. Repair technicians may source this part for replacement applications where motion control and retention both matter. 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.