Abstract: A circuit assembly pin includes a barrel, and the barrel has a substantially cylindrical profile. The barrel is be received by socket on a first circuit board. The pin also includes a body connected to the barrel, and the body has a substantially rectangular cuboid profile. The body also includes a set of protrusions. The set of protrusions includes a set of legs to be inserted to a second circuit board. The set of protrusions comprises a substantially rectangular cuboid profile generally free of projections or depressions. The set of protrusions is substantially perpendicular to the barrel such that the first circuit board is substantially perpendicular to the second circuit board.