General description The 720Pcs M3 Hex Socket Head Cap Screws set includes a variety of countersunk head machine screws designed for use in 3D printers and other metric machines. Made from premium alloy steel, these screws offer excellent mechanical strength and durability, making them suitable for a wide range of applications. Technical specifications Material: Alloy steel Sizes included: 4mm, 6mm, 8mm, 10mm, 12mm Total pieces: 720 Usage Ideal for 3D printers, computers, electronic equipment, fitness equipment, lawn mowers, and more. Perfect for office equipment, communication equipment, and various industries. Other information All screws are packed in a plastic storage box with individual compartments for easy storage and transport. The hexagonal heads and deep sleeves facilitate easier handling and installation.