2-1/2" Hinges are machined from aircraft-grade aluminum and clear satin anodized. They are adjusted to the desired angle and locked into position with socket head set screws. They are designed to provide a multi-angle attachment point for StructureLite SL-2.5BAR.
2-1/2" Hinges are not intended to be 'working hinges' that swing or pivot like a regular hinge, they are designed to be set at the desired angle and locked into position. For some applications for these Hinges see page 116 of the StructureLite Catalog.