Installation Guide

Page 11
1
• Pre-drill deck board with a 3/16”
drill bit
• Reference page 10 for fastener location
requirements.
PRE-DRILL
2
• Using Setting Tool provided, drive
screw at medium or high speed until it
disengages at the proper level below
the deck surface.
• Drive at one continuous speed,
do not slow down or toggle the drill
trigger in a start/stop manner.
• Install two screws into decking at
each joist.
• Maximum spacing between each row of
screws should be 16” on center.
DRIVE SCREWS INTO JOISTS
3
• Place plug into cored hole and
gently tap flush with deck surface.
Always use a smooth faced hammer to
avoid damaging the deck surface while
setting the Cortex plug.
• If mushrooming occurs, stop
installation and call customer service
at 1-800-307-7780.
INSTALL PLUG
Cortex
®
Hidden Fastening System