276 Pcs M4 Bolts and Set, Hex Socket Head Cap Screws Washers, 304 Stainless Steel Nuts Washers Assortment Kit for Machine Repair DIY, Allen Wrench Included

PRECISION M4 HARDWARE TOTAL SOLUTION: Simplify your projects with our 276pcs all-in-one M4 kit. It features 6 popular lengths (6mm/8mm/12mm/16mm/20mm/30mm) plus matching nuts, flat washers, and a dedicated Allen wrench. No more mid-project hardware store runs—this 276pcs set provides things you need for precision fastening in one go. RELIABLE 304 STAINLESS STEEL: Crafted from high-quality 304 stainless steel, these M4 metric bolts offer exceptional rust resistance and durability. Perfect for both indoor and outdoor projects, ensuring your repairs stay secure without the worry of corrosion in damp environments. ACCURATE THREADING & NO SLIPPING: Engineered with precision-cut threads and deep internal hex sockets, our bolts minimize the risk of slipping or stripping during high-torque applications. Each M4 nut fits snugly with the bolt, providing a secure, vibration-resistant hold for machinery, office equipment, and furniture assembly. UPGRADED SECURE STORAGE CASE: Stop wasting time sorting through mixed hardware! Our kit comes in a sturdy, transparent organizer with reinforced dividers that stay in place during shipping. The lid features a clear size chart for instant identification, keeping your workbench professional and organized. VERSATILE PROJECT ESSENTIAL：For 3D printer assembly, RC car maintenance, drone building, and furniture repair. Designed to handle mechanical stress while providing a clean, professional finish to DIY or professional task.