Description

kovervit dx testa esagonale chromiting

Kovervit® DX
Chromiting®
Self-drilling

 

 

Screw for fixing roofing sheets and prefabricated metal walls to iron.


HEXAGONAL HEAD
sharp-edged, with a hollow collar, designed to house the elastic washer against the infiltration of water.


BS SELF-TAPPING THREAD
with self-tapping grooves, which enable it to be used in thick materials without prior tapping.


PUNTA
DRILLEX® self-drilling tip, which can be used to drill materials with a thickness of up to 7 mm, threading and screwing consecutively.

 

 

CARBONITRIDING HEAT TREATMENT
More info: heat treatment


CHROMITING® PROTECTIVE TREATMENT
of an iridescent colour, it ensures a salt spray corrosion resistance of 240 hrs. Compliance with grade 4 of EN 1670 standard.
More info: finishing treatments


CE MARKING
Of the assembly elements for constructing wooden weight-bearing structures, in accordance with the EN 14592:2009 standard (granted by the CSTB Centre Scientifique du Bâtiment, in Paris). Issue of the DoP (Declaration of Performance), in accordance with the European Construction Regulation no. 305/2011.