A must everywhere larger sizes and extra strength are needed. Includes: 280 MACHINE BOLTS. Zinc-plated Grade 5 steel bolts have extra-high shear strengthideal for car frames, bumpers, large equipment and any fastening job subjected to extreme shear force. Includes: 25 sizes 8mm x 25mm to 6mm x 75mm. 280 HEX NUTS. High-quality Grade 2. Includes: 95 each of 5mm, 95 each of 6mm, 45 each of 8mm, 25 each of 10mm, 20 each of 12mm. 280 SPLIT-LOCK WASHERS. High-quality Grade 2. Includes: 95 each of 5mm, 95 each of 6mm, 45 each of 8mm, 25 each of 10mm, 20 each of 12mm. 280 FLAT WASHERS. High-quality Grade 2. Includes: 95 each of 5mm, 95 each of 6mm, 45 each of 8mm, 25 each of 10mm, 20 each of 12mm. 40 STORAGE BINS. Made of heavy-duty polypropylene with rib reinformcement to help prevent spreading when loaded up. Large size4"W x 3"H x 5"D. Stackable. With pre-printed labels for instant identification. 10 MOUNTING RACKS. Heavy-duty polypropylene. Holds storage bins securely. Mounts on workbench or can be mounted to wall.