Specifications: Material: A2 stainless steel Type(optional): A: Cap head B: Button head C: Flat head Size and Quantity: Screws: M2 x 4mm 25pcs M2 x 6mm 25pcs M2 x 8mm 25pcs M2 x 10mm 25pcs M2 x 12mm 25pcs M2 x 16mm 25pcs M2 Nuts 100pcs Package Includes: 150pcs x Screws 100pcs x Nuts Note: 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Premium Material: These button head hex socket screws, nuts, and washers are made from top-notch stainless steel. They are robust, high-strength, corrosion-resistant, non-rust, non-deforming, and long-lasting, even in demanding environments. Convenient Storage: The hex socket screws and nuts are securely stored in a clear, durable compartmental storage box. Each component finds its own space in the box; well-arranged, easy to transport, and locate. No room for confusion during transportation and it's user-friendly. Versatile Applications: These screws are essential in home and office appliances, communication devices, accuracy machinery, classification instruments, electronic products, household appliances, locks, lights, toys, ship assembly, home decoration, and more. Functional Design: Each hex socket screw features uniform, sturdy threads that resist deformation and displacement during installation. The complementary nuts and washers provide an expanded contact area, reducing pressure, and prolonging the lifespan of the screws. Package Includes: The package delivers 180 pieces of hex socket screws in the following size: m2 x 4 mm, m2 x 6 mm, m2 x 8 mm, m2 x 10 mm, m2 x 12 mm, m2 x 16 mm, and 70 pcs of M2 nuts. A total of 250 pieces to meet the needs of various applications.