Rectangular Base Plate with Precision Machining Fixture Plate and Raised Modular Locating Bosses

Specifying the right carbon steel grade to receive a precision machining fixture plate determines the achievable surface flatness after hardening; tool steel grades allow hardening to 58–62 HRC before surface grinding, keeping the reference surface stable under repeated clamping load, while mild carbon steel deforms progressively at high clamping preload and loses flatness over time. Kunshan Baizhi Steel Metal Products (Kunshan, Jiangsu) machines this carbon steel precision machining fixture plate with rectangular base and raised modular locating bosses using 5-axis milling and surface grinding, with base plate flatness, boss OD, and hole array positions controlled to your print callouts. The just under 2,500 m² Kunshan facility serves aerospace, automotive, automation, and semiconductor fixture plate applications. Wire EDM available for tight-tolerance locating features. To quote, we need your drawing showing plate dimensions, flatness tolerance, boss specification, and steel grade. For a production price estimate from our kunshan team, supporting medical equipment, communication, and fasteners projects.