M12 x 30 Alloy Steel Metric Socket Head Shoulder Screw (Stripper Bolt) is designed for assemblies where the shoulder must locate, guide, or support a moving component rather than simply clamp parts together. This format is different from standard socket head cap screws because the shoulder is intended to carry the locating or motion-control role. Common uses include precision manufacturing systems, tool and die work, guide mechanisms, and service parts; related sourcing may also include industrial robotics. OEM manufacturers can specify the same shoulder-size pair when replacement hardware must match an existing metric design. 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.