VSB Frame Screw - Adjustable Scaffold and Frame Screws, Zinc Coated (7 x 70/90 mm)

The screws are designed for attaching the frame to wood, concrete, lightweight concrete, etc. The screw has a fixed adjustment screw, which is screwed into a pre-drilled hole. The frame is adjusted by turning the screw with an adjustment wrench. When installing into concrete, lightweight concrete, etc., a selected nylon plug is used.