4"-8 UN thread gauge ring / plug gage 2A/2B GO&NOGO supplier

4″-8 UN 2A thread ring gauge GO & NOGO US$580

Fraction: 4″

Decimal:4

TPI:8

Thread Form: UN

Ring gauges Tolerance: 2A 3A we just have 2A ring gauge in stock, 3A ring gauge need custom production.

Plug gauges Tolerance: 2B 3B we just have 2B plug gauge in stock,3B plug gauge need custom production.

In stock, can be sent out same day!

Worldwide shipment，usually taking 3-4 days clients can receive goods.

The pictures are just for reference. As too many items in stock,

we haven’t taken pictures one by one.

If needed, one long form calibration certificate from professional third party testing lab

accredited to ISO/IEC 17025 can be supplied.

Each gage 100% calibrated with quality assurance.

These calibration certificates need extra cost, if clients need them,please tell in advance.

We are a professional manufacturer and supplier of thread ring gages and

Thread plug gauges, including GO/NOGO, RH/LH(right hand and left hand).

We have rich ranges of thread gauges, including UN, Metric, ACME, stub-ACME,

BSPP, BSPT, NPT, NPTF, Trapezoidal, and Whitworth etc.

We are committed to providing superior quality with excellent service in

short delivery time, We aim to build long-term customer relationships.

If clients need some special thread gauges, then our custom production service can be provided.

Usually plug gauges need ten days to finish, ring gages need two weeks to finish.

Check the full range of UN thread gage in stock

		Class of fit	External thread gauge(X Class)
			GO		NOGO
			Pitch diameter	Minor Diameter	Pitch diameter	Minor Diameter
4-8	UN	2A	3.9161 3.9156	3.8620 3.8613	3.9070 3.9075	3.8799 3.8806
4.000-8		3A	3.9188 3.9183	3.8647 3.8640	3.9120 3.9125	3.8849 3.8856
			Internal thread gauge(X Class)
			GO		NOGO
			Major diameter	Pitch diameter	Major diameter	Pitch diameter
4-8	UN	2B	4.0000 4.0007	3.9188 3.9193	3.9848 3.9841	3.9307 3.9302
4.000-8		3B	4.0000 4.0007	3.9188 3.9193	3.9818 3.9811	3.9277 3.9272