High-strength nuts are made of high-strength steel plates, or nuts that require a relatively large preload. High-strength screws and nuts are often used to connect road bridges, rails, high-voltage and high-voltage equipment. The cracking of high-strength nuts is brittle fracture. In order to better ensure the tightness of the container, it is necessary to carry out prestressing treatment on the high-strength nuts placed on the high-pressure device. Generally, products such as high-strength nuts can only be purchased from large-scale manufacturers of high-strength nuts, and there are usually very few defects. In addition, the manufacturer will provide us with some after-sales service, so when we cooperate with them, we should also clarify the service standards of the other party. If there are other problems, it is consistent with his after-sales service content, so that the manufacturer can provide after-sales service for everyone. There are product quality problems in mass production. Generally, manufacturers of high-strength nuts will conduct random inspections of their own nuts, but some low-priced nuts may have product quality problems if they are not ruled out. If it is found that most of the nuts have problems during the use process, the manufacturer must be required to pay, and must be delivered in time, so as not to affect our work progress. The supply of high-strength nuts does not meet the specific conditions. Due to the wide variety of product types of High Tensile Nut manufacturers, it is not uncommon to sometimes have incorrect shipments shipped. But we cannot use the nuts provided by the other party. Everyone must ask the other party to deliver again. And how to return the goods in our hands must also be discussed in advance, which requires the other party to bear the corresponding handling fees. Only when each other's rights and obligations are established can collaboration truly reassure everyone.