<h3>Key features</h3><ul> <li>Complete Set Screws Assortment Kit with Essential Tools：This comprehensive 320-piece metric set screws assortment kit includes the most commonly used sizes—M3 set screw, M4, M5, M6, and M8—in multiple lengths, complemented by five hex wrenches. Whether for mechanical repair, assembly, or fixing tasks, this stainless steel screw kit delivers all the essentials in one organized package.</li> <li>Durable 304 Stainless Steel Set Screws : Crafted from high-quality 304 stainless steel, these hex socket set screws provide superior corrosion and rust resistance. Built to last in both indoor and outdoor environments—even under harsh conditions—they ensure reliable performance and long-term durability.</li> <li>Organized &amp; Labeled Storage for Easy Access : Keep your workspace tidy with the included sturdy divided storage box. Each compartment is clearly labeled inside and out, indicating corresponding screw sizes and quantities. This design allows for quick identification and easy access to every cup point set screw and other metric set screws in the kit.</li> <li>Precision-Engineered Hex Socket Set Screws : Featuring clean, smooth threads and burr-free surfaces, each cup point set screw ensures secure fastening without slipping. Made to industrial-grade standards, these 304 stainless steel set screws work seamlessly with the included hex wrenches for effortless installation and removal.</li> <li>Versatile Applications for Professionals &amp; DIYers : Ideal for electricians, plumbers, and DIY enthusiasts alike, this set screws assortment kit can be used in a wide range of tasks—from repairing electronics and home appliances to installing door handles, locks, and bathroom accessories. A must-have metric set screws collection for all your mechanical and assembly projects.</li> </ul><p>Free shipping included. 30-day hassle-free returns.</p>