Screw for fixing hinges and square strips for windows, doors and shutters made of wood, aluminium and PVC.
which ensures a strong tightening pressure and cover of the hole, compared to a common pan head screw.
COLLAR BELOW THE HEAD
whose height corresponds to the thickness of the hinge, has the function of centering the hole and maintaining an axial position, so as to prevent the window shutter from inclining.
CARBONITRIDING HEAT TREATMENT
More info: heat treatment
The Neroplus® treatment gives the screw a corrosion resistance of 1,000 hours (minimum) in salt spray, which corresponds to EN 1670 standard grade 5. This treatment guarantees a resistance 15 times as high as that of standard black galvanizing.
The scratch-proof sealing gives it an exceptional abrasion resistance, improving its aesthetics further.
More info: finishing treatments
More info: Lubex® lubrication