Self Drilling
Hex head self drilling screws are used to fasten sheet metal to steel purlins and rails.
Self Tapping – Type A/Type B
Hex head self tapping screws Type ‘A’ / Type ‘B’ are used to fasten steel or aluminium profiles to steel purlins
Shear Connector
A headed stud that transfers shear stress between metal and concrete in composite structural members in which the stud is welded to the metal beam