is the benchmark for high-precision injection-molded plastic components without secondary machining . It demands excellence in mold making, material science, and process stability. When correctly applied, it delivers robust, dimensionally consistent parts suitable for demanding automotive, medical, and industrial applications.
Title: Precision Requirements for Injection Moulded Parts – Tolerance Grade TG5 per DIN 16742 din 16742 - tg5
For critical features, it is strongly recommended to specify TG5 only on functionally relevant dimensions, while allowing coarser grades (e.g., TG8–TG10) on non-critical geometries to balance cost and performance. and process stability. When correctly applied
Within this standard, represents a high-precision classification. It is typically applied to parts that require tight functional fits, consistent assembly behavior, or superior geometric stability without resorting to post-molding machining. it delivers robust