Hex Head Bolts 304 Stainless Steel Hex Bolt Nut Washer Combination Assortment Kit, 240 PCS/Box, 480 PCS/Box, 520 PCS/Box

1. Crafted from 304 stainless steel, these fasteners offer excellent corrosion resistance and rust prevention, making them suitable for securing machinery and everyday items in a variety of indoor and outdoor environments.
2. The set includes hex head bolts, hex nuts, flat washers, and spring washers (locking washers), designed as a four-piece set.
3. Available in a variety of common metric thread sizes—including M3, M4, M5, and M6—and different length combinations (such as 16 mm, 20 mm, 25 mm, etc.) to meet diverse fastening needs
4. When used in combination with flat washers and spring washers, they effectively distribute fastening pressure and prevent bolts from loosening due to vibration, thereby enhancing connection stability
5. All components are neatly organized in a transparent plastic storage box with dividers. Clear labels indicating specifications are affixed inside for easy sorting, retrieval, and dust-free storage
6. Material: 304 stainless steel