Why Do I Buy The Standard Flat Socket Cap Screw But They Can’t Use ?

★Screw Standard

The first thing you need to check is which standard flat socket cap screw you need, because the standard is divided into GB, JIS, DIN, ANSI / ASME and ISO and so on. The countersunk head of each standard will be a little different in dia size and thickness,and if you need a standard metric screw, please note that don’t buy British, American standard screw for you . Shenzhen Shi Shi Tong Metal Products Co., Ltd. can produce all kinds of standard and non-standard screws. Welcome to know more about the details of standard flat socket cap screw.

★Screw Tolerances

If you’re sure you’re buying the right standard and the screws aren’t usable, you need to check if the screws are out of tolerance due to nonconformity in production in manufacturing. The sizes of flat socket cap screw are thread diameter, total length, countersunk head diameter, countersunk head angle, and inner hexagonal size, etc. Shenzhen Shi Shi Tong is based on precision manufacturing, customer demand-oriented, professional customization production, pre-production confirmation drawings, production in strict accordance with the drawings size, to eliminate the problem of excessive tolerance.

★Size of products to be assembled

In addition to checking the flat socket cap screw itself, but also check the size of your own products, because the screw is accessories, is used with your products, you want to check the hole you reserved is how big, whether it is suitable for assembly.

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