Scaffolding Guide

Joint Pin

To connect scaffold tubes end to end a joint pin (or expanding spigot can be used). The joint pin or spigot is inserted into the end of the scaffold tubes and a centre bolt is tightened. This tightening causes the two parts of the joint pin to expand gripping the ends of the scaffold tubes. It is essential not to use this fitting in situations where it will be subject to tension or bending.

Ledgers should be joined using sleeve couplers. If the joint is within 300mm of a standard then an internal joint pin (or spigot) may be used. Internal joint pins should be positioned as close as possible to the point where the ledger is fitted to the standard. It is important that all joints are staggered.

Facade or sway bracing can be placed continuously across the full face of the scaffold, or placed in a zig-zag (dog leg) fashion across a number of selected bays. Joints in facade braces should be made with sleeve couplers, if joint pins (spigots) are used then each joint must be made strengthened with a lapped tube.

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