Precision Fasteners & Custom CNC Components
Dowel Pins, Keys, Retaining Rings, Screws

Lock Washer (MB Type | Anti-Rotation Washer)
A lock washer is designed to prevent rotational loosening of lock nuts. Commonly used with lock nuts on shafts, it features inner tabs that engage the shaft keyway and outer lock tabs that fold into the nut's slots, providing secure anti-vibration locking.
Product Features
-
Features locking tabs and multiple inner teeth for secure anti-rotation fastening
-
Compatible with M-type and KM-type lock nuts
-
Easy installation without special tools
-
Available in various designs to suit different applications
Material & Surface Treatment
-
SS400 (Carbon Steel): Zinc-plated for general-purpose machinery
-
SUS304 (Stainless Steel): Corrosion-resistant, suitable for outdoor or high-humidity environments
Size Range
-
Thread Size: M10 to M200
-
Locking styles: External tabs, inward teeth, multi-tab types available
-
Thickness and outer diameter customizable to match lock nuts
Applications
-
Bearing retention and anti-loosening in power transmission systems
-
Locking accessory for heavy machinery and construction equipment
-
Anti-rotation solution for high-speed rotating components
-
Ideal for wind power, aerospace, and machine tool assemblies
Customization & Notes
-
Custom specs and locking features available upon sample or drawing
-
Matching lock nuts and installation tools available upon request
-
Stock sizes ready to ship; low-volume orders supported