These Forgefix Set Screws are made from grade 8.8 steel and are zinc plated for increased resistance to corrosion. They are fully threaded and conform to DIN 933 standards.
• Can be used with many Nut types and Washers.
• For fastening together numerous types of material or to be fastened in to pre-tapped holes.
• Widely used in many engineering applications.
Zinc coatings prevent oxidation of the protected metal to create a longer lasting finish. It does this by forming a barrier and by acting as a sacrificial anode if this barrier is damaged. Zinc oxide is a fine white dust that (in contrast to iron oxide) does not trigger a breakdown of the substrate's surface integrity as it is formed. The zinc oxide, if left intact, can act as a barrier to further oxidation, in a way similar to the protection afforded to aluminum and stainless steels by their oxide layers.