Description

kovervit bs testa esagonale chromiting

Kovervit® BS
Chromiting®
Self-tapping

 

 

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.


 

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