If there’s an enduring image of how large steel structures used to be made, it’s probably the hot riveting process. You’ve probably seen grainy old black-and-white films of a ...

The mystery of the lock nut, though, isn’t how it works. The nylon insert is just a little too small for the bolt, and the ...

Here thermal cameras were fitted with specially designed A4 stainless steel screws, nuts, bolts and fixings to provide longevity and aid conservationists in their efforts to monitor these majestic ...