Designed to deliver trouble-free, consistent performance Right for your vehicle and lifestyle Made from high-quality materials for ultimate durability Manufactured to meet or exceed strict quality requirements If you have any questions or need fitment information for your vehicle, please contact with us 3-5/16" L x 3-1/16" W Square U-Bolt, Standard (57441) by Seachoice. Solid galvanized steel u-bolts with nuts and lock washers. Covers most U-Bolt applications. This superior product is perfect to make your trailer towing experience safe and convenient. Designed to meet the highest quality standards, it is second to none in durability and performance. Made using the finest materials, it is sure to serve you reliably for a long time.