Advantages: The Weideer 200Pcs #83/4" Self Tapping Screws feature an enhanced design that minimizes the risk of material cracking during installation, ensuring a secure and reliable fastening. These screws allow for quick and efficient installation without the need for pre-drilling, significantly reducing construction time. Their unique thread design enables them to lock and secure materials together effectively, making them an ideal choice for various applications. Material: Crafted from high-quality 410 stainless steel with a black oxide finish, these self-tapping screws boast superior density and durability. They exhibit excellent corrosion and wear resistance, outperforming standard screws in stability and longevity. The magnetic properties of 410 stainless steel further enhance their versatility in various projects. Sheet Metal Screw diameter: #8, length: 19mm-3/4inch. The precision engineering of these screws ensures that the cross grooves are designed to prevent slipping, allowing for fast and accurate installation. The deep thread design of the round head self-tapping screws provides exceptional holding power, ensuring robust and sturdy connections for your projects. Application: These self-tapping screws are perfect for a wide range of materials, including wood, plastic, and softer metals. They are particularly effective for connecting color steel plates, wall beams, and more. Their versatility makes them suitable for use in the machinery industry, household appliances, furniture repairs, ceiling frame installations, and DIY engineering projects. Package includes: This package contains 200 sheet metal screws neatly organized in a box for easy storage and transport. Additionally, an extra screwdriver bit tool is included for added convenience, ensuring that you have everything you need to get started on your projects.