socket head cap screw strength

There are many strength grades of screws. Many customers choose the screws, especially when selecting the strength grade of carbon steel screws. If the strength is required, be sure to confirm the strength level. What are the strength levels of the socket head cap screw strength?

The socket head cap screw strength is really a lot. The strength grade of the screws is generally from 3.6 to 12.9, and there are more than ten levels. It is divided into 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, and 12.9. The 3.6-level strength is the smallest. Generally, the strength of the normal-used screw is 4.8, and the strength of the stainless steel 304 is 4.8. Screws with a strength of 8.8 or higher can be called high-strength screws, and those below 8.8 are ordinary screws. In fact, the strength of the hex cap screw is not particularly divided, and the strength grade of the screw is divided according to the above grade.

Having said that, what is the so-called screw strength? For example, a 4.8-level screw, where 4 refers to a tensile strength of 400 MPa and the remaining 0.8 is a yield ratio. The same strength 8.8 screws, 8 is tensile strength 800MPa, 0.8 is the ratio of yield. And so on. The strength of the socket head cap screw strength is the same.

Custom-made socket head cap screw strength of various sizes are welcome to contact the Shishitong screw factory for each strength class. The Shishitong screw factory can be customized according to your needs.