Cat® Socket Bolts are designed for mounting front axle housings based on size, strength, clamp load, and past performance. Compared to other bolts, socket bolts of the same size enable you to achieve higher torque and clamping force. Cat® fasteners are manufactured to precise specifications and are built for durability, reliability, productivity. Strength & Quality Fasteners meet or exceed ISO, ASTM, ASME & SAE requirements. Cat® bolts, nuts, and washers are designed to work together as a system for maximum clamping force. Coatings that meet special requirements for different applications (RoHS compliant).Application:Cat® Bolts and the matching hardened washers and nuts form a performance based system which produces consistently high clamp loads. You can trust Cat® Fasteners to help you build it, maintain it, or fix it - for most machine and workshop applications throughout the world. Consult your owner's manual or contact your local Cat® Dealer for more information.