The Koch PTO Lock Pin Square, sized at 3/8 inch by 3-15/16 inch, is a reliable fastening solution designed for securing power take-off (PTO) equipment. This square lock pin is crafted to handle demanding agricultural and industrial applications, offering a secure and stable connection. Its robust construction and precision design make it essential for maintaining the safety and functionality of PTO setups.Size: 3/8 inch by 3-15/16 inch, ideal for PTO applications. Design: Square shape for secure fit and added stability. Application: Suitable for agricultural and industrial PTO equipment. Durability: Built for high-demand environments and reliable use. Convenience: Quick and easy installation and removal.