M12 x 20 Alloy Steel Metric Socket Head Shoulder Screw (Stripper Bolt) supports engineers designing metric tooling and OEM equipment with precise location, spacing, or guided travel requirements. The key design value is the shoulder: it provides the functional surface for bearing contact, repeatable location, or controlled travel. Common uses include Asian-built equipment, indexing stations, locating nests, and automation upgrades; related sourcing may also include assembly fixtures. 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. The internal hex drive helps keep installation practical in compact assemblies and serviceable equipment layouts. Call Cold Headers at 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.