How to control the quality of the metric truss head machine screws?

Nowadays, people are getting more and more strict control over the quality of their products. For them, winning the quality has won the market. Indeed, when the quality of our products is excellent, there will be many buyers in the same type of products that tend to have a good quality. The same is true for screws. So how do you control the quality of the metric truss head machine screws?

After the customer placed the order for the metric truss head machine screws, the quality was actually controlled. On the map to the customer, we will clearly indicate the tolerance of each part. The size of the part that cannot be found in the produced screw is not within the tolerance range, otherwise it is a defective product.

Then choose to produce the wire of the metric truss head machine screws. The selected wire is also very important. If the selected wire diameter is too large or too small, the screw specifications produced will not be within the tolerance range. There is also a problem with the mold. If the mold of the screw has a problem, the screw produced by using the mold with the problem will generally be re-produced, because there is a problem with the surface of the screw, that is, the size of the screw is a problem.

There is no problem in checking the size of the screw after each of the head and the rolling thread. If there is no problem with the size, look at the surface. The screws after plating are also measured. After the plating, the size of the metric truss head machine screws is out of tolerance, and there is no problem with the surface of the plating.

If the customer asks to test the torque or the salt spray for how many hours, it should also be done according to the customer’s requirements, to ensure that they are within the customer’s requirements. When packaging and shipping, make sure the packaging is intact and not damaged.

If you want to customize metric truss head machine screws, please send an email: annie.li@szsst88.com