MetalTech 13 in. locking arm is a safety device used for stacking both standard mason and arch frames. The locking arms are attached to the locking pins of both the upper and lower scaffold frames that have 4 ft. pin spacing when stacked. Rugged steel design with blue powder coat finish for protection against the environment.
Constructed of high strength steel
Safe, simple secure locking device (no tools required)
Use with standard or arched scaffold frames
Meets OSHA standards
one (1) year against all manufacturing and material defects from the date the product was purchased.