In February of 2024, we began providing our exclusive line of domestic “Portland Bolt” branded split rings, making us the premier supplier of split rings, installation tools, and other timber connectors.

The split ring wood connector is a device for transmitting loads between two pieces of wood. They are placed in precut grooves made with standard grooving tools. The tongue and groove “split” in the ring permits simultaneous bearing of the inner surface of the ring against the core left in grooving and the outer face of the ring against the outer wall of the groove. The beveled split ring affords ease of assembly.

The 2-1/2″ split ring wood connector is desirable for trussed rafters or for lumber construction involving only lumber of 2″ nominal dimension. The 4″ split ring, the most widely used connector, may be used efficiently for truss spans from 30′ to 150′. Both the 2-1/2″ and 4″ split ring work well when used for column corbels, wind braces, beam and girder seats, and, in addition, numerous uses in exterior construction, such as towers and bridges of all types.


Sizes: 2-1/2″ and 4″
Origin: Import
Finish: Plain and hot-dip galvanized


Bolt Diameter Inside Diameter Depth Lumber Minimum Dimension Weight Per 100 Pieces Part Numbers
Ring In 1 Face Ring In Both Faces Plain Galvanized Plain Galvanized
12 212 34 1 x 312 112 x 312 27 28 18683 18684
34 4 1 1 x 512 112 x 512 68 70 18685 18686