The SWITCHCRAFT part S1029 is a high-quality round washer designed for various industrial applications. This washer features a durable construction with Vulcanized Fiber material, providing excellent resistance to wear, tear, and chemicals. With a sleek black finish, it adds a professional touch to any project. The washer has a 9.525 mm (3/8 inch) inner diameter and a 15.875 mm (5/8 inch) outer diameter, making it suitable for a wide range of fastening purposes. Trust the S1029 round washer for its reliable performance, longevity, and versatility.