Self Drilling

sec1 Hex head self drilling screws are used to fasten sheet metal to steel purlins and rails.  

Self Tapping – Type A/Type B

sec2 Hex head self tapping screws Type ‘A’ / Type ‘B’ are used to fasten steel or aluminium profiles to steel purlins  

Shear Connector

stud-pics-for-main-page-on-website 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