The 3 dimensions that nut manufacturing factories most often measure incorrectly!!!

The 3 dimensions that nut manufacturing factories most often measure incorrectly!!!

When problems arise with nuts or screws, many people often think that they are caused by the raw materials or the manufacturing process.

However, in TMC's experience, it has been found that in many cases, the cause is measurement errors at just a few key points.

1.Diameter Although it is a basic dimension, in threaded work, all three dimensions -

Major Diameter, Minor Diameter, and Pitch Diameter - must be considered. If measured at the wrong position or using an inappropriate tool, the measurement result may not reflect the actual use.

2. Thread Pitch Screws that can be tightened but are stiff, cannot be tightened fully, or cause problems in the automatic assembly process are often caused by a thread pitch that does not meet the specifications. Even if the deviation is small, it can accumulate and affect the assembly.

3. Length of the workpiece (Length)

This is the dimension that seems to be the easiest to measure, but it is also the most frequently mistaken, especially when there are different measurement reference points, such as measuring from under the nut head or measuring including the head. If the drawing interpretation is not consistent, the measurement results will immediately differ.

The important thing is that these problems are often not caused by the manufacturing machinery, but by the understanding of measurement, the selection of tools, and the accuracy of the measuring instruments.

Therefore, the calibration of measuring instruments to meet the specifications is very important because good product quality starts with the creation of correct measurement standards.

If you want to check the accuracy of measuring instruments and calibration tools,

you can contact Thai Metrology Calibration Co., Ltd. (TMC), an ISO/IEC 17025 accredited laboratory.

Tel. 02-531-8148 to 52