Snap On Lock Frame Scaffolding Frame is kind of regional scaffolding system which is popular in California, U.S.A. It is designed and complied to the requirements of OHSA & ANSI A10.8. Its cross braces and guard rail braces have special design to match the snap on lock. The frame is fabricated by dia.1.625"x0.09" high quality steel tubes and the width is 3' or 5'. The finishing is powder coated. The snap on series frames are used mostly for residential building construction.