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HiGrip® Home > Real World Performance > HiGrip®
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HiGrip® from Buildex® is a revolutionary design in roof fasteners that overcomes the traditional problems with crest fixing metal roofing to steel or timber.

When roofing screws are placed on the top of the roofing profile prior to installation, an indent area sometimes forms around the screw due to the operator forcing down heavily before drilling commencement.
When the profile is fixed down with a non-HiGrip® fastener this indentation remains around the fastener, causing water entry.

HiGrip® is a secondary thread located at the top of the shank under the washer face. During installation the thread of the HiGrip® is carrying the roof profile in an upward motion while the washer face is carrying the fastener in the downward motion.
The upward pressure at the HiGrip® tends to straighten or reverse the indent made by the initial penetration, therefore preventing the possibility of water entry

HiGrip® diagram

Designed to achieve a number of functions:

The operator feels the thread bite, a clear signal to prevent over-drilling.
Restricts ‘over-drilling’ which leads to ponding or dimpling.
Grips sheet to provide ‘positive’ joint with EPDM washer.
Unthreaded shank prevents profile riding up during fixing.
Prevents sheet moving down shank when roof is walked on.
Extrudes metal around the fastener hole upwards making water ingress more difficult.
HiGrip® Screw

Product Range

Metal Teks® Hexagon Head with seal
Gauge Description      
14g 14-10x25mm   HiGrip® logo  
  14-10x39mm   HiGrip® logo  
  14-10x50mm   HiGrip® logo  
  14-20x65mm   HiGrip® logo  

Gauge Description      
12 12-14x37.5mm   HiGrip® logo  
  12-14x50mm   HiGrip® logo  
  Type 17's Hexagon Head with seal
Gauge Description      
12g 12-11x50mm   HiGrip® logo  

RoofZips® Hexagon Head with seal
Gauge Description      
M6 M6-11x50mm   HiGrip® logo  

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