Can the tolerance of the ultra low profile shoulder screw be so small?

Last week, Shi Shi Tong screw manufacturers received an email from the United States. The customer said that he needed an ultra low profile shoulder screw and asked if we could produce it according to the drawings. If you can produce it, please quote him the price of 100pcs sample.

After seeing the drawings of the customer’s ultra low profile shoulder screw, Shi Shi Tong screw manufacturers found that this screw is not simple. The tolerances given by the customer in the drawings are very small. For example, the diameter required by the customer is 5mm, but the tolerance given by the customer is +0/0.025mm. In general, if the flat head screw is used for the turning process, the tolerance is generally ±0.05 mm.

To meet the tolerances required by the customer, we need to grind the ultra low profile shoulder screw after turning, so that the cost of the screws will go up a lot.

In order to save customers money, Shi Shi Tong screw manufacturers asked customers whether they can accept the shoulder diameter tolerance of ±0.05mm, whether this will affect your assembly. If it does not affect, we recommend that customers use the tolerances we recommend, so that the cost will be reduced.

The latter customer insisted on using his original tolerances and confirmed the order shortly after receiving our offer.

If you want to know more about ultra low profile shoulder screw please feel free to contact us at annie.li@szsst88.com