304 Internal Serrated Lock Washer for Battery Equipment GB/T 861.2-1987 is a high-quality stainless steel washer designed for secure fastening in energy storage and battery systems. Made from corrosion-resistant 304 stainless steel, this washer ensures long-lasting performance and reliability in critical applications. Featuring internal serrations, it provides enhanced locking capability to prevent loosening due to vibration or thermal expansion, making it ideal for use in新能源电池组, battery racks, and electrical enclosures. With dimensions ranging from Φ2 to Φ20, it meets the GB/T 861.2-1987 standard, ensuring compatibility with a wide range of screws and fasteners used in 3D sheet metal stampings. This serrated lock washer acts as a spring element, maintaining tension and structural integrity in compact and high-precision battery equipment.More
Serrated washers are used as springs on small parts and are about the same size as the fastening screws and self-tapping screws used with them in three-dimensional sheet metal stampings.
Standard Fasteners, Application-Specific Fasteners, Non-Standard Custom Fasteners, Joining components (rivets and inserts), Stamped parts and metal lathe-turned parts
