U-Bolt Spare Tire Carrier without Brackets (86091) by Tie Down EngineeringA(R). U-bolt 7/16" design, accommodates 4 and 5 lug wheels. Fits 8" thru 14" tires and most 15", 3" thread length - OAL 8-3/4" Zinc plated for lasting protection. Fits all trailer frames up to 3" wide. This superior product is perfect to make your trailer towing experience safe and convenient. Designed to meet the highest quality standards, it is 2nd to none in durability and performance. Made using the finest materials, it is sure to serve you reliably for a long time.