Deck Screw Usage Chart

Fastener typeHardwood deckingSoftwood DeckingPressure treated wood deckingComposite deckingPVC deck trimDocksMarine/coastal
Deck screw, Bugle head ✓✓✓ *
Deck screw, Trim head ✓✓✓ *
DWP Wood SS screw, Flat head ✓✓✓ *✓ *
DWP Wood SS screw, Trim head ✓✓✓✓ *✓ *
DSV Wood screw, Flat head ✓
DCU Composite screw, Cap head ✓✓ *
* Use Stainless 316 for marine/coastal applications whenever possible.