ISO metric trapezoidal screw threads — Tolerances — Part 2: Limits of sizes
NORMA vydaná dňa 25.7.2025
Označenie normy: ISO 2903-2:2025
Dátum vydania normy: 25.7.2025
Počet strán: 31
Približná hmotnosť: 93 g (0.21 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO
Description / Abstract: This document specifies the limits of sizes for major, pitch and minor diameters of ISO metric trapezoidal screw threads (Tr) conforming to ISO 2902 and having basic and design profiles in accordance with ISO 2901. This document is applicable to the metric trapezoidal screw threads with the seven tolerance classes (7H, 8H, 9H, 7e, 8e, 8c and 9c) recommended in ISO 2903.