Installation Instructions

ROCK-ON
Cement Board Fasteners
Product Features
Rock-On
Rib design under head countersinks into dense material
while preventing stripouts.
Two point types for steel and wood applications.
Larger head diameter increases board surface contact for
greater pullover resistance.
Rock-On is recommended for ACQ treated wood.
Backer-On
Gimlet points starts easily - no predrilling.
Serrated thread design provides reduced installation torque
and superior holding power.
Rib design under head countersinks into dense material
while preventing stripouts.
#2 square drive prevents bit from slipping.
Rock-On
Diameter...................... #8; #9
Thread Form...............
8-18; 9-15 Hi-Lo
®
Drill Point.................... #8 Type S-12
®
; #9 Type “S”
Head Style.................. Wafer Head with countersinking ribs
Finish.........................
Climacoat
®
Backer-On
Diameter...................... #10
Thread Form...............
10-10 Serrated
Drill Point.................... Gimlet
Head Style.................. Wafer Head with countersinking ribs
Finish.........................
Long life epoxy topcoat/zinc plating.
Cement-type boards or any dense
sheathings to steel or wood studs.
Plywood to steel or
wood studs.
Wire lath to steel or
wood studs.
Hardie Fiber Cement
Backerboard
Applications
High performance rib design is still the best!!!
™
BACKER-ON
Fiber Cement Backerboard Fasteners
Recognized for use with HARDIBACKER
®
fiber
cement backerboard.
™
57
Product Specifications
CEMENT BOARD APPLICATIONS PR
ODUCT
REPOR
T
NO. 02722