Quality Control Analysis to Detect Defects in Drywall Fastener Screws

Abstract

Screws are pieces designed to join two or more elements, they are composed of three parts that are thread, neck, and head. Depending on the type of material they are made of their size and functionality can acquire different characteristics. This article describes the way in which a sample of 200 2-inch screws used for drywall were evaluated to detect potential failures in their manufacturing, through the application of quality tools, with which the main factors that intervene to achieve the best quality of these products were determined. In addition, the study of a real case allowed us to demonstrate feasible improvements that can be applied not only in a certain area, but in the whole industry, since the quality of a product also determines the potential growth of a company. The results obtained showed the degree of affectation of each defect, being advisable for the company to focus on bent screws, screws with deformed tips and screws with incorrect measurements, as these represent greater losses. In conclusion, in the industry it is necessary to use and manage tools to increase the productivity and quality of the processes, thus having a significant impact on all areas of production, achieving the best possible final product.