bolt fastener with the newest types

Purlin Bolt Fastener

Hi engineer do you wanna know what is the newest bolt fastener in construction project. Most of industrial fastener production in this world develop the new type of bolt fastener to cover constructions needs.

Fastener is very important for doing construction project. Why this little thing become important. Yes because it has many function to bond two or more than two parts of construction project. 

for example to bond 2 kinds of plate in the pipe of ladder in steel construction project for power plant project