GB97 Black Grade 8.8 Carbon Steel Flat Washer Plain Gasket set Overview This flat washer set is manufactured from carbon steel with a black finish and conforms to GB97 standards. The washers are Grade 8.8 strong and designed to provide a reliable loaddistributing surface for metric bolt assemblies. They are plain flat washers (gaskets) intended to protect mating surfaces, minimize wear, and help distribute clamping force. Key benefits Even load distribution: helps prevent damage to bolts and mating surfaces by spreading the load over a wider area. Surface protection: reduces indentation and marring on softer materials during tightening. Simple, versatile hardware include: compatible with a wide range of metric bolts and nuts, thanks to the broad size range. Strength and durability: carbon steel with a black finish provides solid performance for common mechanical assemblies. Key attributes Material: carbon steel Finish: black Standard: GB97 Strength grade: 8.8 Type: flat washer, plain gasket Range of metric sizes included: M1.6, M2, M2.5, M3, M3.5, M4, M5, M6, M8, M10, M12, M14, M16, up to M24 Pack options: available in 5, 10, 25, 50, and 100 pieces Sizes and compatibility Metric sizes span from M1.6 through M24, including M3 and other common metric thread references. Designed for standard bolt and nut assemblies in metric hardware. Suitable for use with fasteners of corresponding thread diameters, providing a compatible and secure fit across multiple applications. Applications and use cases Mechanical assemblies and equipment mounting: distribute clamping force for motors, brackets, housings, and panels. Automotive and bike components: serve as spacers and load distributors in chassis, engine, and accessory installations. DIY and home projects: furniture assembly, shelving brackets, curtain rod or fixture mounts, and other hardware projects requiring a flat washer to protect surfaces and spread load. Care and maintenance Store in a dry, clean environment to prevent surface corrosion. Inspect for deformation or wear before reuse; any washers showing damage. Use with appropriate torque for the bolt size to avoid overtightening and possible washer damage.