Made of 316 stainless steel, which offers the following advantages:
- Excellent strength
- Excellent corrosion resistance
- High resistance to acids
- Stainless steel screws are all polished to a high gloss.
Stainless steels are iron alloys with a minimum of 10.5% chromium, with other elements added (nickel, molybdenum, titanium, copper, carbon, nitrogen) to increase properties such as formability and strength. A chromium-rich oxide layer gives stainless steel its resistance to corrosion.