Experience the reliability and precision of Bowmalloy with these 5/16 flat washers, perfect for a wide range of fastening applications. Each pack contains 200 pieces, ensuring you have an ample supply for your projects. Manufactured in the United States, these washers are designed to meet the most stringent quality standards.The flat design of these washers allows for a secure fit in tight spaces, providing a reliable seal and increased durability. Whether you're working on machinery, assembling furniture, or engaging in a variety of other tasks, these washers will deliver the performance you require.