Wheel Adapter - 5 x 5.00 in Hub to Wide 5 Wheel - 5/8-11 in Stud Thread - 3/8 in Thick - Aluminum - Each Brand-A-1 PRODUCTS MPN 12810P . **NOTE: Truck Freight NO From the Manufacturer: Founded by Brad Creighton 1989, A-1 Racing Products is one of the longest running specialty-equipment businesses respected for its reputation in the auto racing industry. Surviving industry consolidation, A-1 Racing Products is a modern company with old school racing values. The company provides a large variety of the latest products in the specialty-equipment industry. A-1 Products offers a wide range of products in a diverse mix of categories, from fasteners and fittings to suspension kits and components.