UN plug gauge

UN thread plug & ring gauges supplier

the full name is Unified Constant Pitch thread gauge

the available of GO and NOGO and ring head ：

about 5/16-6″ some standard sizes ， we usually  have stock， we can delivery in next week.(you best consult us ,before you buy it )

the UN thread plug and ring guages tolerance: Plug 2B & ring 2A

Internal UN thread plug gauge's thread tolerance class: 1B、2B、3B;

External UN thread tolerance class: 1A and 2A and 3A

Material: GCr15

We have as below standard sizes’ UN screw plug gages and screw ring gages in stock.

For special gauge without stock, we can provide special custom production service

our mail : gaugemaster@126.com