What Does 10.9 Mean on a Bolt?
In steel structure construction, one often sees the number ‘10.9’ engraved on the heads of high-strength bolts. This is not merely a random sequence of numbers, but rather a ‘code’…
In steel structure construction, one often sees the number ‘10.9’ engraved on the heads of high-strength bolts. This is not merely a random sequence of numbers, but rather a ‘code’…
In mechanical fastening, Grade 10.9 and Grade 8.8 bolts are the two most widely used grades, and many people wonder which of the two is stronger. From a technical perspective,…