Brand: Bob Drake Reproductions Manufacturer's Part Number: 78-17481 Part Type: Windshield Wiper Arm Components Product Line: Bob Drake Wiper Arm Nuts Automotive Fittings Part Number: BDR-78-17481 Wiper Arm Component Type: Wiper arm nut Quantity: Sold as a pair. Description: Bob Drake offers wiper arm nuts for a variety of 1930s and '40s Ford cars and trucks. These polished stainless steel fasteners hold the wiper arms to the towers. Order the pair recommended for your application.