Rivlok™ is our patented security screw system that comprises a smooth headed screw that is driven into position using a special tool that relies on friction to operate.
This produces a vandal proof range of fasteners that makes extraction of the bolt or screw almost impossible without the matching driver. These fasteners can only be tightened or removed by using specific matching friction drive tools for each head configuration and fastener material combination.
The range of fasteners covers numerous head shapes, lengths, materials and thread combinations. These include screws, bolts and coach bolts. Sizes range from a 4 gauge to M12.
The name Rivlok™ was derived from the fact that when the screw was in place it closely resembles the head of a rivet.