M8 x 20 Alloy Steel Metric Socket Head Shoulder Screw (Stripper Bolt) helps machine builders specify hardware that fastens while also supporting a controlled interface between moving components. Engineers choose this product family when the shoulder must guide, pivot, space, or stop a component with more control than ordinary clamping hardware. Common uses include metric production equipment, tool and die work, guide mechanisms, and service parts; related sourcing may also include assembly equipment. Maintenance professionals can use the metric shoulder format when worn guide, pivot, spacer, or stop hardware needs direct replacement. Alloy Steel construction supports high-strength fastening in precision industrial applications where the shoulder performs the working function. It can also support guide mechanisms, fixture stops, and replacement maintenance where a consistent shoulder surface is part of the design. Call Cold Headers at 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.