The CAT 165-3931 3/8" 16X13/4" Hex Head Bolt Pack of 5 is a new old stock product designed for Caterpillar equipment. Made by the reputable brand CAT, these bolts are specifically compatible with Caterpillar machinery. This pack of 5 bolts is crucial for maintaining and repairing heavy equipment, ensuring durability and quality performance. Perfect for businesses in the construction and industrial sectors, these bolts are a reliable and essential component for various heavy equipment applications.