An outrigger having a locking mechanism. The outrigger including includes an elongated member having a distal end, a proximal end, and a threaded portion proximate the distal end a moveable member operably associated with the elongated member. and a slide lock operably associated with the moveable member. The thread portion may have at least one flat side and the slide lock may have at least one flat portion. The at least one flat side and the at least one flat portion may engage such that the slide lock translates along, but not rotate about, the threaded portion. The slide lock may engage a surface of the clamp. The moveable member may move the slide lock towards the clamp such that the engagement portion engages the surface of the clamp. The connection between the engagement portion and the surface of the clamp may prevent the slide lock from rotating relative to the clamp.
