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Method for measuring length dimensions of different screw types and specifications
Release time：2022-06-23 08:49
Some purchases are not very understanding of the length and size measurement of different screws, but they must know when purchasing screws. Today, the professional basic problem of screw length measurement will be answered by the editor. Different screw length measurement has different measurement standards and regulations. It must be carried out according to the measurement standards of the screw industry.
Length measurement of screws: such as cross recessed pan head screws, hexagon head bolts, hexagon socket screws, umbrella head screws, self-tapping screws with pads, large flat screws, etc. Its length and diameter measurement method is to directly measure the length of the screw thread diameter, excluding the screw head, that is to say, when measuring, the caliper measurement does not need to include the screw head measurement. Measure the length of the screw thread diameter.
Like cross recessed countersunk head screws, it is also called countersunk head screws and flat head screws. The length measurement of this type of screws is different from other screws. It is quite special in that its standard dimension for measuring length is the diameter including the screw head measurement. The method is to use a caliper to measure the straight line from the head of the countersunk screw to the tail of the screw thread. That is, the length of the entire screw is its length.
Of course, no matter what screw length size we are measuring, there is a standard. This standard is the national standard size of our screw industry. In the process of measuring the length of the screw, we have to use a caliper, micrometer and so on. And in this measurement process, there will certainly be errors, so what should we do? This requires us to measure several times, and then take the average. It is better to have professional screw quality personnel to measure the length and size of screws and screws.
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2022-06-23
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