DIN 16742 is the primary European benchmark for tolerances in plastic molded parts. It replaced the older DIN 16901 standard to better account for how modern plastics behave—specifically how they shrink and warp compared to metals. Breaking Down "TG5"
TG5 assumes dimensional stability at 23°C / 50% RH. If your part operates at 80°C in PA66, the tolerance must be loosened by 25% due to creep—or switch to glass-filled material. din 16742 - tg5
provides a standardized framework for determining tolerances in plastic molded parts. Unlike its predecessor, this standard focuses on material properties DIN 16742 is the primary European benchmark for