SEMS Screws

A SEMS screw, also known as a preassembled screw and washer, is a type of fastener that consists of a screw and a washer permanently attached to it. The washer is typically a flat, circular piece of metal with a central hole, and it serves various purposes, depending on the specific application and design of the SEMS screw. The primary advantages of SEMS screws are convenience and efficiency in assembly processes. They eliminate the need for separate handling of screws and washers, reducing the risk of misplacement or loss of components during assembly. SEMS screws are commonly used in industries such as automotive, electronics, and appliances, where they provide a time-saving and reliable fastening solution. SEMS screws come in various configurations, including internal tooth lock washers, external tooth lock washers, split lock washers, and plain flat washers. Each configuration is designed to fulfill different requirements, such as vibration resistance or electrical conductivity, in specific applications. In summary, SEMS screws are preassembled fasteners that combine the convenience of a screw and washer in a single unit, streamlining assembly processes and ensuring secure and efficient fastening.