M20 x 100 Alloy Steel Metric Socket Head Shoulder Screw (Stripper Bolt) provides a defined shoulder for equipment designs that require repeatable alignment and controlled movement. Unlike a standard socket head cap screw, this shoulder screw uses its unthreaded shoulder as the working surface while the threaded end retains the fastener. Common uses include Asian-built equipment, serviceable machine components, guide rails, and assembly-line equipment; related sourcing may also include metric production equipment. Tool and die shops often evaluate this Stripper Bolt format when guided motion or stripper plate travel depends on a defined shoulder. The shoulder can support controlled travel in fixtures, guides, pivots, and stops while the socket head allows accessible installation. 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.