#$%^&*AU2011200755B220130627.pdf#####ABSTRACT A polyaxial bone screw has a shank for implanting in a bone, a receiver with a cavity that operably receives an upper portion 5 of the shank and upward extending arms forming a channel to receive a connecting member. An upper pressure insert is positioned over the connecting member when the bone screw is fully assembled. There is a closure for closing the channel. The upper pressure insert includes a lower surface shaped to 0 receive and engage the connecting member and a first of a bore and a projecting pin. The closure includes an outer ring and an inner ring threadedly received in the outer ring. The closure inner ring has a second of the bore and projecting pin. The bore is sized and shaped to slidingly receive the pin as 5 the closure is received in the receiver and advanced toward the upper pressure insert. The closure has a final orientation wherein the closure engages and urges the upper pressure insert downwardly to frictionally engage the connecting member. Cpofnword SPEC-905373doc
