"This 200 PCS Stainless Steel Metric Flange Nut Assortment is designed for strength, precision, and versatility. Manufactured from corrosion-resistant 304 stainless steel, this flange nuts set includes seven popular sizes and is perfect for use in automotive, machinery, construction, furniture assembly, and more. Each nut features a serrated flange base that improves grip, distributes clamping force, and helps prevent loosening under vibration – an essential for heavy-duty applications like engines and power tools. The included reusable box keeps all fasteners neatly stored and easy to access. This nut set is a must-have for anyone working with metric components and fasteners nuts. ✔ Key features: Sizes included: M3 (60 pcs) M4 (50 pcs) M5 (40 pcs) M6 (20 pcs) M8 (15 pcs) M10 (10 pcs) M12 (5 pcs) Material: Stainless Steel 304 Includes reusable organizer box Compatible with various metric fasteners and screw nuts 🔧 Note: This product includes only metric hex flange nuts and is not compatible with SAE threads like 1/4-20 nuts, 3/8-16 nut, or 5/16-18 nut. Please check thread specifications before use. This all-in-one nut set is ideal for builders, mechanics, and DIYers who need both variety and quality in one compact, efficient package. 💬 We're here to help At our brand, we take pride in providing fast, attentive support. Reach out with any question or concern — we're happy to assist and ensure you're satisfied. "