Terrace screws - stainless steel C2
Wood: larch, thermowood (preferably european softwood)
Enviroment: general use in exterior/interior (not suitable for swimming pools and exotic wood)
Decking screws from stainless steel C2 (AISI 410) made from hardened stainless steel can wear over 60% higher torque moment than A2 screws. They are slightly magnetic.
Hardened stainless stell screws can be used also for fastening of the wooden claddings.