This pack of 25 pcs Snap/Lock PTO Pin Square with Two Wire and Zinc Plated finish is perfect for securing your fasteners in place. With a pin length of 2-1/2 in and effective length of 2-1/4 in, it can easily fit into any system of measurement in inches. The pin diameter is 3/8 in, and the material is made of carbon steel for maximum durability. The Tab-Lock & Safety Pins type of fastening pins is perfect for use in a variety of industrial and business settings. Made in India, the quality of these pins is top-notch. These pins are a must-have for anyone in need of a secure and reliable locking mechanism.