304 Stainless Steel Serrated Lock Washer, Internal/External, Anti-Loosening, M3~M20.

This durable washer is crafted from high-quality 304 stainless steel, ensuring excellent corrosion resistance and longevity, making it suitable for a variety of environments. Designed with both internal and external serrations, it provides superior anti-loosening performance, preventing fasteners from vibrating loose and maintaining a secure fit. Available in sizes ranging from M3 to M20, it accommodates multiple applications, making it a versatile choice for securing assemblies in mechanical, automotive, and industrial projects. Standard No.: GB858 Manufacture country: China Instructions included: No