External fixator ring

An external fixator ring comprising:

• a ring with a central opening defined therethrough, the ring having inner and outer ring surfaces and upper and lower ring surfaces, and an outer longitudinal edge in the outer ring surface perpendicular to the upper and lower ring surfaces;
• one or more apertures extending through the upper ring surface to the lower ring surface;
• one or more angled flanges extending radially from said inner or outer ring surface, each angled flange comprising a first mounting surface, a second mounting surface, and a securing surface positioned between the first and second mounting surfaces;
• each of said angled flanges comprising two strut connection apertures extending at least partially into the first and second mounting surfaces and having a smooth inner surface operable to receive studs providing attachment to a ring connection strut;
• and,
• each of said angled flanges comprising a receiving aperture extending at least partially into the securing surface so as to intersect with the two strut connection apertures, said receiving aperture operable to receive a locking screw to lock the studs into the adjacent strut connection apertures.