Abstract: A fastener system includes a fastener and a tool for use with the fastener. The fastener includes a shank defining a first pointed end and an opposed second end, and a plate is connected to the second end. A first head is connected to the plate and the head defines a first opening therethrough and a slot which extends from the opening through an exterior surface of the head. The tool is configured for cooperation with the fastener for attaching the fastener to a wall, ceiling or other surface.

Abstract: According to the present invention there is provided a protractor including a main body surrounding a circular aperture and having a scale of angular measurements thereon, and a rotary cursor mounted on the main body for rotary movement about the center of the circle of the circular aperture. The rotary cursor includes a part-circular center portion engaged in the circular aperture and rotatable within the aperture, and a radial arm portion extending radially outwardly from the center portion to the scale. The center portion of the rotary cursor is generally in the shape of a sector of a circular disc bounded by the reference side edge and the further side edge, and extends through about three quarters of a circle. The arm portion and the center portion of the cursor are formed as an integral unit.