M4-M12 Flange Screws | A2-304 Stainless Steel | 10-Piece with Serrated Lock Washers

Engineered for superior corrosion resistance, these A2-304 stainless steel flange bolts integrate a serrated washer directly under the head. This design provides a secure, vibration-proof lock while eliminating the need for a separate washer, streamlining assembly. Features and Benefits - A2-304 Stainless Steel Material - Offers excellent resistance to rust, oxidation, and corrosion, making it ideal for outdoor, marine, and chemical environments. - Integrated Concave Serrated Washer Head - The serrations bite into the mating surface to prevent loosening from vibration, creating a reliable self-locking fastener. - External Hexagon Head Design - Allows for high-torque application with common wrenches and sockets, ensuring a tight and secure fit. - GB5789 Standard Compliance - Assures consistent quality, thread precision, and mechanical performance for professional and industrial use. Applications - Outdoor equipment and structural assemblies exposed to weather - Food processing, marine, and chemical industry fixtures requiring sanitary, rust-proof fasteners - Automotive and trailer components where vibration resistance is critical