Steel Deck Screws
Steel deck fastening requires matching the screw drilling capacity and thread engagement to the deck and supporting steel thickness. JOPAL technical data helps identify suitable self drilling fasteners for deck-to-steel and related sheet connections.
Products connected to this application.
What matters for this connection.
Fastener selection
Identify whether the connection is deck-to-steel support or another deck detail, then check deck gauge, support thickness, drill capacity, screw length and thread engagement for that connection.
Installation control
Install through the intended deck location into the supporting steel with the fastener perpendicular to the support. Avoid over-driving, which can damage thin deck material or strip the formed thread.
Connection checks
Review deck thickness, support thickness, pull-out and pull-over behavior, fastener spacing and pattern, connection purpose, corrosion exposure and any project-specific approval requirements.
Common questions for this application.
What determines the drill point for a steel-deck screw?
The drill point is selected for the steel thickness it must penetrate, particularly the supporting member. Verify the product drilling-capacity range against the actual connection.
Why does deck gauge matter in fastener selection?
The deck sheet contributes to local connection behavior around the fastener. Thin-sheet pull-over and the intended fixing pattern can be as important as the fastener itself.
Are side-lap screws the same as deck-to-support screws?
No. Side-lap fasteners join overlapping deck sheets, while deck-to-support fasteners connect the deck to the supporting steel. Use a product documented for the intended connection.

