Steel Box/Electrical boxes / Sheet Metal

General Tolerance  

Linear dimension limit deviation value
Tolerace Level	Basic size
	0.5~3	>3~6	>6~30	>30~120	>120~400	>400~1000	>1000~2000	>2000~4000
F	±0.05	±0.05	±0.1	±0.15	±0.2	±0.3	±0.5	——
M	±0.1	±0.1	±0.2	±0.3	±0.5	±0.8	±1.2	±2
C	±0.2	±0.3	±0.5	±0.8	±1.2	±2	±3	±4
V	——	±0.5	±1	±1.5	±2.5	±4	±6	±8

 

Rounding radius and chamfer height dimension limit deviation value
Tolerace Level	Basic size
	0.5~3	>3~6	>6~30	>30
F	±0.2	±0.5	±1	±2
M
C	±0.4	±1	±2	±4
V

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