Thread Plug Gauge Suppliers| Things you need to know before buying gauges

The manufacturing environment today is highly demanding and choosing of properly inspected threaded parts with the appropriate thread gauges is absolutely important. It is imperative to select the proper inspection instrument for the right quality control decisions. A wrong method or device would lead to inaccurate results.

Moreover, it would affect the performance and the cost of the parts that have been inspected. This is why buying thread gauges from reliable thread plug gauge suppliers is imperative.

General purpose gauge buying considerations

The metric ISO threads are the most commonly used general purpose screw threads across the globe. The gauge system specified in these includes ISO 1502. This system makes sure that the work piece threads are completely compatible. The modern thread production involves various kinds of tools and inspection methods. These range from fixed limit gauges to digital instruments.

Irrespective of the tools and the inspection methods employed, one has to ensure that consistent results are obtained. If there are any doubts, the gauges recommended in Standard ISO 1502 are used to decide the result of the inspection in case of the metric ISO thread.

Even if the inspection work in the production is done by measuring, it is still imperative to ensure that random sample inspection is performed with standardised gauges. The reference temperature for the work piece dimension and gauges must be 68⁰F in order to ensure accuracy in the inspection. The expansion coefficients must be taken into account in case of inspection performed at other temperatures.

Thread plug gauge suppliers also offer precision fixed limit gauges. You should select quality gauges by taking into account some factors including:

The aged steel gauges are highly stable and true to their specified dimensions. Gauges should have extra high water-resistance.

These should have hardness much over the standardised minimum requirements.

The supply of standard and special tolerance models is desirable.

Laser marking of custom specifications on gauges are preferable.
Gauge handles with double surfaces provide for a sufficient space for marking the gauges. 

Dirt flute in plug gauge assists safe gauging even in hard situations.

Gauges manufactured by ISO: 9001 companies.

Buying gauges for internal threads:

The internal threads are gauged using the go thread plug gauges and the no-go thread plug gauges. Both these types of the gauges are mounted on a common handle of the diameters up to 40 mm. In certain cases, the thread diameters of up to 62 mm can be standardised in Din 2240-2.

The go thread plug gauges measure the ‘virtual size’ of the internal thread for allowing proper screw-in fit. This helps to check the smallest size of the internal thread pitch diameter. This also includes certain form deviations like the pitch and the thread profile deviations. 

The smallest size of the major diameters also gets checked. However, the minor diameter of the internal thread doe not gets checked in this way.

The go thread gauges chosen should have the ability to be screwed by hand through the full length of the work piece thread without the need to apply force.

You can learn more about the right go thread plug gauges and no go thread plug gauges and buy these by visiting reputable thread plug gauge suppliers online.