Dodge 2012 Ram - Manual (Page 238)

Bed Rail Tie-Down System
CAUTION!
The maximum load per cleat should not exceed
250 lbs (113 kg) and the angle of the load on each cleat
should not exceed 45 degrees above horizontal, or
damage to the cleat or cleat rail may occur.
There are two adjustable cleats on each side of the bed
that can be used to assist in securing cargo.
Each cleat must be located and tightened down in one of
the detents, along either rail, in order to keep cargo
properly secure.
Adjustable Cleats
236 UNDERSTANDING THE FEATURES OF YOUR VEHICLE