Customized Thread Gauges at Affordable Prices

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The smallest of errors can cause the biggest of problems if not addressed immediately. Gauge technology is a classic example of such a situation. Gauges are essentially used to measure the threading on nuts and bolts that hold and support any structure. The threading on the nuts and bolts is very important as the slightest of miscalculation and measurement in manufacturing can cause the nut bolt to malfunction which may result in complete malfunction of the machine. Thread gauges are the most common form of gauges used to measure the threading and tensile strength of the bolt. Nuts and bolts are widely used in many situations right from basic construction to assembling the most complex machines. The most common application of gauges is inspecting threaded holes and shafts. While using plug gauges to check threaded holes in manufactured parts is a common practice, checking shaft, dowel and fastener diameter using ring gauges is perhaps less common but equally important.

There are mainly three types of thread ring gauges namely:


Solid Thread Ring Gauge - A solid ring gauge is used to check acceptance of a screw. Here the go and the no go rings are usually separate pieces. It is mainly designed to check the correctness of the thread, which includes thread depth and pitch diameter. If the part is perfect for acceptance the GO ring gauge should pass through the entire length of the screw without application of any external force. Essentially the screw and bolt will thread completely through relatively easily. The NO GO ring gauge can at the best enter into the screw not more than two rotations or beyond that.

Adjustable Thread Ring Gauge - These types of gauges are ring shaped having a split in the middle and an adjusting locking screw facility which helps in adjusting their final gauging size. In order to set these gauges "Setting Plugs" are needed.

Another important type of gauges which are used to check the correctness of the nuts is called as Thread plug gauges. These gauges are used to measure the internally threaded part of the nut. In the case of small threaded parts the gauge will be double ended, with one end carrying the GO gauge and the other carrying the NO GO gauge. Where large parts are considered these are two separate pieces. This type of gauge is mainly designed to determine correctness of the pitch diameter. For the part to be accepted the GO gauge should pass through the entire length of the nut very smoothly without requiring the use of slightest amount of external force. The best a NO GO gauge can do is enter the nut, over not more than two terms.


The website that deals in these parts can also make customized gauges according to the client's needs and requirements even for one single part. If the product ordered by any customer is returned the company will do a full refund and bare the shipping charge. These parts need to be perfect or the slightest amount of error can harm the entire structure.

Frank Xu is the author of this article on BSPT thread gauges.
Find more information, about Trapezoidal thread gauge here

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