20PCS M6 x 50mm Carriage Bolts with Serrated Flange Nuts, 18-8 SS

Product Description Upgrade your fastening projects with this premium Carriage Bolt and Serrated Flange Nut Set, engineered for durability, reliability, and long-term performance. Each bolt is made from 304 stainless steel, offering outstanding resistance to rust and corrosion—perfect for both indoor woodworking and outdoor construction in humid or coastal environments. The carriage bolt’s smooth, domed head provides a clean and safe finish, while the square neck beneath the head locks into the material to prevent rotation during tightening. Paired with M8 serrated flange nuts, this combination delivers a strong, vibration-resistant connection without the need for separate washers—ideal for projects exposed to movement or heavy load. This hardware set is widely used in woodworking, deck building, fence installation, trailer flooring, sheds, and outdoor bench repair. Whether you’re a DIY enthusiast or a professional builder, it provides a dependable fastening solution for wood, metal, and composite structures. Each set comes organized in a durable plastic storage case, keeping your hardware neatly sorted and portable. Designed for easy access and long-lasting use, this kit ensures you have the right fasteners at hand whenever you need them.

• Premium Construction: Made of high-quality 304 stainless steel for superior corrosion resistance, rust prevention, and long-lasting durability. Suitable for both indoor and outdoor applications in humid or marine environments. Note: 304 stainless steel may be slightly magnetic.
• Package Contents & Details: The set includes 20 pieces of M6 × 50mm round head square neck carriage bolts and 20 matching M6 serrated flange nuts. Each bolt and nut pair is precisely threaded for smooth installation and a secure fit. The threads are clean and well-cut, ensuring firm engagement without slipping or jamming. Perfect for woodworking, metal fabrication, furniture assembly, and other fastening projects where a durable and polished connection is required.
• Reliable Locking: The rounded, mushroom-shaped carriage bolt head features smooth lines and a clean, polished appearance, enhancing the overall assembly quality while preventing snagging or scratching. The square neck beneath the head fits tightly into wood or metal, preventing the bolt from rotating during tightening and ensuring a stable, precise installation. The included serrated flange nuts provide strong locking force to prevent loosening, making the connection more secure and durable.
• Versatile Applications: Suitable for a wide range of woodworking and metal projects, including furniture assembly, deck and patio construction, shed building, fence installation, trailer mounting, and outdoor bench or recreational structure repairs. Whether for DIY home projects or professional construction, these carriage bolts provide a strong, stable, and durable connection, meeting a variety of fastening needs.
• Service & Packaging: Comes neatly packed in a reusable plastic storage box, making it convenient for transport and storage. If you have any questions or concerns, please feel free to reach out to our team at any time.