Semi Storage Boxes › Step Box Mounting Brackets Image 1 of 8 Image 2 of 8 Image 3 of 8 Image 4 of 8 Image 5 of 8 Image 6 of 8 Image 7 of 8 Image 8 of 8 Step Box Mounting Brackets CA$150.00 High Quality, Heavy Duty Mounting Brackets to mount Step Boxes to your Semi! Includes Left and Right Side Brackets Quantity: Purchase Added! High Quality, Heavy Duty Mounting Brackets to mount Step Boxes to your Semi! Includes Left and Right Side Brackets Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More You Might Also Like Aluminum Smooth Face Big Mouth Step Boxes from CA$695.00 Stainless Steel Step Boxes from CA$2,100.00 Aluminum Big Mouth Step Boxes from CA$695.00