??Type?: 10.9 Grade Alloy Steel Button Head Hex Socket Cap Bolts Screws. Drive Type: Hex Socket (2mm); Head Style: Button Head; Exterior Finish: Black Oxide; Thread Dia.: 3mm; Pitch: 0.5mm. NOTE: ALL SCREWS ARE COATED WITH ANTI-RUST OIL! ??High Quality Material?: Crafted from 10.9 Grade alloy steel with a corrosion-resistant black oxide finish, these screws are designed for a lifetime of use. Their exceptional durability makes them suitable for various applications including home improvement, automotive repairs, and workshop projects. Offering excellent corrosion resistance, firmness, wear resistance, and low-temperature performance, these screws are ideal for professionals and DIY enthusiasts alike. ??Package Included?: M3 x 8mm (25PCS), M3 x 12mm (25PCS), M3 x 16mm (25PCS), M3 x 20mm (25PCS), M3 x 25mm (25PCS); Total: 125PCS. Comes with an Allen key for easy installation. ??Wide Use?: This assortment of button head hex socket cap screws is perfect for a variety of applications including electrical connections in household and commercial appliances, as well as automotive and marine uses where a threaded or bolt-type connection is required. The set is an excellent solution for replacing broken or missing screws, making it a valuable addition to any toolkit. Product Description Grade 10.9 Alloy Steel Button Head Hex Socket Cap Screws with Hex Key Durable and High Hardness Constructed from robust 10.9 Grade Alloy Steel, these screws feature a black surface oxidation treatment that enhances their strength and durability. They are engineered to withstand wear and tear, ensuring reliable performance in various settings. Please refrain from installing them in wet environments or outdoors. Reduce Stripping Our screws are designed with a deep cut internal hex drive, which minimizes the risk of stripping screw heads. The snug fit of the bit in the head ensures efficient and secure fastening. Get a Good Grip Featuring a clear uniform pitch and well-defined screw threads, these screws provide an excellent grip without any residual burrs, ensuring a smooth installation process.