The (25-Pk) Hair Pin Cotter Steel, Zinc 3/8 to 1/2 Shaft DIA 2UJL9 is a set of fastening pins designed for use in a variety of industrial and business applications. Made of steel and zinc plated for durability, these hair pin cotter pins come in a convenient pack of 25, making it easy to have them on hand for when you need them. The size range of 3/8 to 1/2 inch allows for versatile use in different applications, while the inch system of measurement ensures accuracy. Perfect for fastening and securing tasks, these hair pin cotter pins are a reliable and essential tool for any business or industrial setting.