While fastening with bolt and nut occupies much of the time of the fastening science, there are numerous other techniques of attachment. Chief among these is the use of welding to attach components. Welding is a familiar process with sheet metal assembly. Car bodies, appliances, and almost everythin ... MORE
Analytical analysis of bolted joints requires either the direct calculation of fastener elongation or calculation of the components that determine elongation. Even in instances when tension can be measured directly during testing, calculating elongation can be desirable when direct measurement is im ... MORE
In the world of engineered components, let's face it; fasteners aren't the first things engineers think about. They're not exciting, and they're not sexy. They're commonly treated as routine. But choose the wrong fastener for the application and the best laid engineering plans and products can fall ... MORE
The usual focus on an externally threaded fastener typically views only nomenclature to identify it; for example, size and type, not the topography that includes the diameter, pitch, length, and drive system, and seldom what it does, how it will be installed, or used.
Deeper engineering perspectiv ... MORE
A threaded bolt/nut joint is held together by forces whose total strength in compression is greater than the forces that tend to pull them apart. If not, the joint will loosen, and vibration would cause it to fall apart. Sounds simple enough, but it is not. Firstly, the forces that the joint will se ... MORE
Plastic failure comes in several modes and can have more than one failure occurred in a single design. General failures occurred include boss failure, low pullout, cracking, material and environmental factors, low drive and unloading ratio and joint relaxation.
Plastic series include more than hundr ... MORE
Cold-Forging Wire for Automobile Fasteners ... MORE