Senco's SHD150HP tool installs Mantis deck clicks using threaded nails that have a square-drive head.
Senco's SHD150HP tool installs Mantis deck clicks using threaded nails that have a square-drive head.
Mantis starter clip.
Mantis starter clip.

Senco has a new pneumatic solution for installing hidden deck fasteners: The SHD150XP tool has a special base along the magazine that positions the gun along the joist. At the nose, a rare earth magnet holds a hidden deck clip in place, and similar to a framing-connector nailer, the threaded nail projects slightly before it’s fired so you can align in the clip’s hole. The nails have a square-drive head so they can be backed out with a drill/driver if needed.

The nailer weighs 4.6 lbs, features sequential actuation, operates at 70 – 120 PSI, and has a 5 year warranty. It sells for about $300 online.

Mantis clips have been out there for a while (SureDrive offers a similar pneumatic gun for installing them). They are intended to fit in grooved decking; three custom varieties are available to fit most brans of grooved decking on the market (see chart). When installed, the clips slightly elevate the a deck board off the joist, which provides a little airflow and helps avoid trapped water under the deck boards from rotting the joist tops.

Senco’s packaging of the Mantis clips makes them available in boxes (enough fasteners to install 50 square feet of decking on 16-inch centers; start and finish clips are included), or in buckets to covers 250 square feet of decking. Buckets do not include start and finish clips. Start and finish clips are available separately in packs of 25.

For more information, watch Senco’s video below.