100 Pieces 3/8-16 x 1 Flanged Hex Head Bolts Grade 5 Serrated Hex Flange Bolts Full Thread UNC Coarse Zinc Plated Carbon Steel DIN 6921 Hex Flange Bolt Kit with Silver Washer Nuts

Package Includes: 100 pieces of 3/8-16 x 1" flanged hexagon head bolts, fully threaded with coarse UNC threads. Bolt head diameter 14mm, flange diameter 20.5mm, and head height 9.9mm, ideal for various industrial and automotive fastening needs.

Durable Material: Made from Grade 5 carbon steel with zinc clear trivalent plating and plain finish for excellent corrosion and rust resistance. These bolts offer high strength and durability, suitable for harsh environments and long-term use.

Integrated Flanged Head: Built-in serrated flange acts as a washer, distributing clamping force evenly and resisting loosening caused by vibration to ensure secure fastening.

Easy Installation: Designed for quick and reliable fastening with external hex drive, compatible with standard hex wrenches or sockets, providing a slip-resistant grip for professionals and DIY users.

Versatile Applications: Perfect for machinery assembly, automotive repairs, industrial equipment, home appliances, and construction projects, offering reliable strength and performance across many mechanical and industrial uses.

These Grade 5 Flanged Hex Head Bolts are engineered for strength, stability, and efficiency in fastening tasks. Designed with a built-in serrated flange, they eliminate the need for separate washers and provide excellent resistance to loosening from vibration or torque. Made from heat-treated carbon steel with a durable zinc-plated trivalent clear finish, these bolts offer medium-high tensile strength and enhanced corrosion protection in various indoor and outdoor environments. Specifications - Type: Serrated Flanged Hex Head Bolts - Size: 3/8"-16 x 1" (UNC, Coarse Thread – 16 TPI) - Material: Carbon Steel, Grade 5 - Finish: Zinc Plated (Clear Trivalent) - Standard: DIN 6921 - Head Diameter: 14mm - Flange Diameter: 20.5mm - Head Height: 9.9mm - Thread Type: Full Thread - Drive Type: External Hex - Quantity: 100 Pieces - Color: Silver Key Features - Integrated Flange Design: Built-in washer distributes load evenly across the surface and reduces the risk of surface damage. - Serrated Flange: Prevents loosening from vibration, improves grip, and enhances clamping force without additional washers. - Reliable Strength: Grade 5 carbon steel offers solid mechanical performance and torque resistance, ideal for structural and mechanical use. - Protective Coating: Zinc plating with trivalent finish provides basic corrosion resistance for automotive and industrial environments. - Easy Installation: Standard hex head fits most wrenches and socket tools, ensuring quick, slip-free tightening. Applications Suitable for a wide range of uses including: - Automotive assembly and repair - Industrial machinery and equipment installation - Agricultural equipment and light construction - Furniture, frame structures, and cabinetry - Pipe fittings, metalwork, and DIY home projects