How To Measure A Hexagon Head Screw ?

Often there will be customers, holding a picture of a screw to us and say: I want this hexagon head screw, do you have this screw?

Customer Service Replied: Hello, what is the specification of this hexagon head screw?

Then customers will give us a ruler or tape measure on hand: M3.2*6.5

Usually, if this is the case, we usually remind the customer that the screw so measured is inaccurate, then how should the screw measure to meet the requirements? Today we will introduce the hexagon head screw measurement method.

First of all, we have to choose the right measurement tools, tools are the first measure of the hexagon head screws.

Measurement tools

Universal measuring tool is vernier caliper, also known as “caliper,” or thickness of the inner and outer diameters of special measuring tool parts, precision up to 0.01 mm.

The second is the measurement method

Generally use the vernier ruler to measure the screw. The main measurement place is the thread diameter of the hexagon head screw and the thread length of the hexagon head screw. The hexagon head screws also needs to measure the hexagon across flat and depth. The ordinary screw you need to measure the head diameter, head thickness, steps to measure the diameter and thickness of the step, each screw measurement method is roughly the same, but the details are not the same.

How to measurement hexagon head screw

Therefore, when we need to buy a hexagon head screw, we need to measure the size of the screw to know what size of screw we are going to buy. When we mastered the above method, we will not go wrong when we buy it.