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Self-Drilling Screws For the building and construction industries
Corrosion Resistance Requirement (Australia Standard AS 3566.2002)


  Corrosion Resistance Class        Atmosphere of Intended Use

Class 1.

General use in internal application AS 2331.3.1 (Aalt Spray Test) for 72 h

Class 2.

General use in pther than external applications but where significant levels of condensation occurs. AS 2331.3.1 (Salt Spray Test) for 240 h. DIN50018 (Kesternich Test) for 5 Cycles.

Class 3.

External use in mild moderate industrial or marine environments. Corrosivity categories C2 and C3 classified accordance with ISO 9223. AS 2331..3.1 (Salt Spray Test for 1000 h. DIN 50018) (Kestemich Test) for 15 cycles.

Class 4.

External use in severe marine environment. Corrosivity C4 classified in accordance with ISO 9223. AS 2331.3.1 (Salt Spray Test) for 1500 h, DIN50018 (Kesternich Test) for 25 cycles.







 




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