Wood and chipboard screws can be screwed in without making a pre-hole. Very sharp and threaded along their entire length, they prevent the wood from splitting when screwed in.

Vis tête fraisée : conviennent pour la fixation du bois et du plâtre, car permettent une insertion totale dans le support.

Les Round-head screws: for better surface contact. This is why they are used to fix objects.

The Chromium-plated brass tallow-drop screws have a milled round head in the shape of a lens to prevent snagging. More for decorative use, they are used for assembling wood intended for disassembly.