Is impreg+ better than galvanized?

[Kallebo]

My wife bought heavy wood screws coated with Gunnebos Impreg Plus. According to the packaging, they are supposed to resist corrosion better than other coatings.

But I'm a bit skeptical. Has anyone compared them with regular hot-dip galvanized bolts, which also look significantly sturdier in the same dimension..?

 

[etompau]

The finish on the left looks better anyway.
Gunnebo must have something that supports their claim.

 

[Mjölsered]

The wife bought heavy wood screws coated with gunnebo's impreg plus. According to the packaging, they should resist corrosion better than other coatings.

But I'm a bit skeptical, has anyone compared them with ordinary hot-dip galvanized bolts which also look significantly sturdier in the same dimension..?

Wonderful Perstorp tabletop they are on, straight from the 70s.

 

[justusandersson]

Design Sigvard Bernadotte. Galvanized French screws last forever.

 

[Deathtrip2000]

What is the strength class of the screws? Is there anything stamped on the screw head?
A smoother surface is more corrosion-resistant. This applies at least to stainless material.