COMPLETE METRIC SET: 401pcs nylon lock nuts in 7 sizes (M3-130pcs, M4-75pcs, M5-55pcs, M6-80pcs, M8-40pcs, M10-15pcs, M12-6pcs) compliant with DIN 985 standards for universal compatibility.
PREMIUM 304 STAINLESS STEEL: 18% chromium & 8% nickel composition withstands 72-hour salt spray test (4.8 hardness grade) for extreme corrosion/rust resistance and reusable durability.
SUPERIOR ANTI-LOOSE PERFORMANCE: Nylon insert creates elastic friction to prevent loosening under vibrations, ideal for RC cars, automotive, CNC machines, and industrial equipment.
ORGANIZED STORAGE SOLUTION: Includes labeled plastic case with compartments for easy access and space-saving nut/bolt organization.
WIDE APPLICATIONS: From aerospace/railway maintenance to home DIY, electronics repair, and wind turbine assemblies – a must-have for professionals and hobbyists.
WORKING PRINCIPLE of LOCK NUTS: The permanently bonded engineering plastic insert adheres to the threads. During tightening, the plastic compresses and generates powerful radial counterforce. This dramatically increases friction between mating threads, delivering robust vibration resistance that secures the locknut's functionality
-7%
Luomorgo 12 Sets 1/4"-20 x 3 in. Carriage Bolts, Round Head Square Neck Fully Threaded Screws, Galvanized Steel Carriage Bolts with Hex Nuts, Flat Washers
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