
Precision Anti-Loosening Lock Nut with High Strength Steel. Anti-Loosening Design: Eliminates backlash and prevents loosening under high-speed rotation and heavy loads. High Precision Machining: Engineered for machine tool spindles and high-precision transmission systems. Premium Material: Constructed from high-strength steel with advanced heat treatment. Full Customization: Custom thread size, pitch, dimensions, material, and surface treatment available. ISO Certified Quality: Products are ISO certificated with strict dimensional inspection. Black Surface Treatment: Features blackening treatment for enhanced durability and appearance. Global Export Packaging: Standardized export packaging with rust-proofing and shockproof protection. DIN Standard Compliance: Manufactured to DIN standards with Grade 6.8 strength rating.