As fastenings cannot be accessed once they are installed, safety-related components in particular are subject to particular corrosion protection requirements, depending on the ambient conditions involved.

Inner areas will very generally be dry, so under these conditions, protective coatings or galvanising provides sufficient corrosion protection.

Stainless steel materials must be used in outside areas and in inside areas where there are corrosion factors. Under DIN EN ISO 13918 [73], headed studs are in group SD3 with materials 1.4301 and 1.4303 to DIN EN 10088 [70]. For steel plates, materials 1.4571 and 1.4401 to DIN EN 10088 are used.

Where particularly corrosive influences are present, such as chemical pollution, stainless materials must be checked to see whether they can be used in each case.

Anchor plates made of currently standardised materials must not be used in chlorinated atmospheres.