How to accurately express the specifications and models of screws purchased?When many enterprises use screws, they do not know the actual specifications and sizes of the screws used.Many purchasing personnel also do not understand.

The company asked him to buy screws, but they did not know how to accurately describe the size of the screws.

As a result, because there are too many screw products, they are not professional.How to tell the screw supplier exactly what screws they want.For enterprises to purchase screws in the existing problems.

Explanation:

If the varieties and specifications of screws purchased are not many, it is most convenient for you to bring the sample or mail it to the manufacturer, so that the manufacturer can confirm for you.Do the screw to see you in kind is generally a standard part of the screw, they will see clearly.I will confirm with you the specific screw specifications.

If there is no specific product style, ask the factory’s technology to provide you with the purchase list of screws.Specific standard specification model and purchase quantity.If the product specification variety can, make a list.Then give it to the supplier.

In fact, it is more convenient to purchase screws if there is a sample.

If you are a procurement personnel, first of all to confirm your screw material, the surface is what color, such as the general factory of the screw bolt is black, there are galvanized, and nickel plating, chromium plating, hot galvanized, Dacroc and so on.

Then there are specs and dimensions.General China’s screw is the use of national standards are generally metric system, the United States and Britain system also has but not much.You can use a caliper to measure the diameter of the screw, such as the outer hex. If the diameter of the screw with the caliper card is 7.9mm, that is the diameter of M8.

The length you measured from the bottom of the hexagon face is 25mm, and the specification of the bolt is 8*25.General bolts are measured from the beginning of the root, such as the set screw is the amount of the full length.

If you are not sure of the screw size you can find a similar nut to tighten it and try.If you can’t use the screws, make sure they are made in England or America.It can be determined by measuring the tooth diameter with your dentist.