About this product 【Excellent material】 Our self-tapping nuts are made of high-quality stainless steel and nylon, which are corrosion-resistant and can prevent loosening and twisting. Durable for long-term use. 【Nylon insert】 Threaded hex nut to prevent loosening, nylon insert prevents loosening and keeps the nut in place during vibration. These threaded inserts are waterproof, rust-proof and sturdy. 【Easy to store】 Individual storage compartments are designed for easy storage. Thanks to the fully transparent box, the assortment of self-tapping nuts is clearly visible inside, even when stacked. Very strong and will not open during delivery. 【Wide range of applications】 Stainless steel nuts can be used to fasten bolts, threaded rods and hexagon socket screws. Perfect for folding beds, cabinets, miners, engines, textile machinery, workshops, motors, etc. 【What You Get】 You will get 200pcs/7 sizes of the most common self-tapping nuts, including 55pcs x M3 45pcs x M4 40pcs x M5 30pcs x M6 15pcs x M8 10pcs x M10 5pcs x M12 Product Description \"Self-tapping Nuts Assortment Features: - Our stainless steel nuts are made of high quality material, sturdy and durable for long-term use. - Mirror galvanized for excellent corrosion resistance in interior and exterior applications. - Usually threaded onto bolts, machine screws and rods, snaps onto the threads and makes it very difficult to unscrew. - Contains sizes between M3-M12 nuts, 200 pieces in total, enough for daily use. - This assortment comes in a practical storage box with individual compartments for easy organization. Product information: - Material: Stainless steel - Color: as shown - Quantity: 200 pieces - Size: M3 / M4 / M5 / M6 / M8 / M10 / M12 Package includes: 55pcs x M3 nuts 45pcs x M4 nuts 40pcs x M5 nuts 30pcs x M6 nuts 15pcs x M8 nuts 10pcs x M10 nuts 5pcs x M12 nuts 1 * plastic box Warm tips: - The products contain small parts. Do not let children play with them to avoid accidental ingestion. - The nut is an accessory that consists of screws and bolts that form a connection with them and secure the components. To ensure that the nuts can hold the components securely in place, a wrench or socket wrench should be used during installation.\"