Canadian Lock Series Scaffolding Frames are manufactured using high strength 1.69″ O.D. x 0.095"t steel tubing, and feature fully coped joints for superior strength and durability. The frames are available in Blue Powder Coated, or Hot-dipped Galvanized finish. All of our frames come with pair of 1″ coupling pins and spring retainers, to keep them attached to the top of the frames. The frames are designed to meet or exceed both CSA and OSHA standards.