The D53018 is a slide lock post assembly designed for securing D-Subminiature connectors. This individual assembly consists of one #4-40 post, two washers, one lock washer, and one hex nut. It is engineered to ensure positive mating and provide reliable locking, making it suitable for high-vibration applications. The components are made of steel with a chromate over zinc finish for durability. For a complete installation, it is recommended to order two assemblies per connector.