Screw

Abstract

The design relates to a screw used in a tile levelling system; the screw consists of an elongated threaded shaft, a flared midsection with trapezoidal contours, and a flat base; the shaft carries a continuous helical thread; the base includes two opposing cut-outs that create a bifurcated configuration, as visible in the bottom and perspective views; the external configuration of the screw, including the threaded shaft, the flared midsection, and the flat base with two cut-outs, is shown in the reproductions; protection is claimed for the external appearance of the screw as illustrated; no claim is made for the material or technical function.

Images