统一螺钉（UNC）的水量规 线程仪 WR5/8-11UNC2A

Gage type: ANSI B1.2
Nominal dimension (mm): 5/8
Pitch (mm): 11
Grade (class): 2A
Pitch (number of peaks/inch): 11
Nominal dimension: 5/8
Gage type: Straight, stop

ohns（相当于JIS SKS3）

204G

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