Abstract: A wall nail includes a rod body, a nail head, a rotary head, and a rubber cover. The rod body has a first end portion and a second end portion opposite to the first end portion. The nail head includes a threaded rod and a drill. Two ends of the threaded rod are integrally connected with the second end portion of the rod body and the drill respectively. The rotary head is integrally formed on the first end portion of the rod body. The rubber cover covers the peripheries of the rod body and the rotary head.

Abstract: A wall nail includes a rod body, a nail head, a rotary head, and a rubber cover. The rod body has a first end portion and a second end portion opposite to the first end portion. The nail head includes a threaded rod and a drill. Two ends of the threaded rod are integrally connected with the second end portion of the rod body and the drill respectively. The rotary head is integrally formed on the first end portion of the rod body. The rubber cover covers the peripheries of the rod body and the rotary head.

Abstract: The present subject matter relates to patterned substrates. In an example implementation of the present subject matter, techniques for creating patterns on different substrates are described. In an example, a method of creating the patterns includes spray depositing a plurality of coating layers over the substrate to form a coated substrate, where the plurality of coating layers include at least a top layer, and at least one of a base coating layer, a primer coating layer, and a powder coating layer. The method further includes forming a predefined pattern on the coated substrate by one of laser etching and Computer Numeric Control (CNC) process.