Обший каталог Yamawa 2016 - 2017 - страница 788

1. ISO Tap Classes.

μm

Pitch Dia. tolerance zone of 5H=100μm : (Tolerance 20μm)

ISO 2X

class 3

class 2

class 1

Internal thread : Tap : Pitch Dia. tolerance zone

Pitch Dia. tolerance of 5H Basic Pitch Dia. 2. Comparison of pitch diameter tolerance zone for the classes of internal thread and tap.

■For Metric threads

(1) Tap limit classes of YAMAWA P ISO 1, ISO 2, ISO 3, ISO 2X.

(2) Pitch diameter tolerance zone of ISO 5H class 1 for M1.4 and smaller

(3) Pitch diameter tolerance zone of ISO 6H (Internal thread) larger than MI.4

Sizes

Basic Pitch Dia. ISO 2X

(+)μm

ISO 1

ISO 2

ISO 3

ISO 2X

Internal threads 5H

Internal threads 6H