Weight | 7.19 kg |
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Hex Head Steel Fix – #12X50MM ZAP S/D SCREW HEX CLASS 2 (Box of 1000)
R777.98
#12(5.5)x50mm Zap self drilling screw; Hex; Type 17 point; Class 2 electroplated
Box of 1000
Class 2
Screws are made from heat treated carbon steel, the screws are heat treated to give added strength. They are then electro plated with a clear or yellow zinc for better corrosion protection. This coating is not normally thick on cheaper methods of coating
5 -8 microns for Class 1 ( Z head marking )
12-14microns for Class 2 ( Z2 head marking)
The zinc coating is vulnerable in marine and industrial environments