Wilwood 240-2231 Lock Washer 0.322 ID x 0.438 OD x 0.022 Disc Brake Hardware

The Wilwood 240-2231 is a precision-engineered lock washer designed for use in Wilwood disc brake rotor bolt assemblies. With dimensions of 0.322" I.D. × 0.438" O.D. × 0.022" thick, this washer is a critical fastening component used to secure rotor mounting hardware during brake assembly.

Key Features:

• Dimensions: 0.322" Inner Diameter × 0.438" Outer Diameter × 0.022" Thick
• Manufactured from high-strength alloy steel or stainless steel for exceptional durability
• Plated with an anti-corrosion finish to withstand the harsh heat and moisture environment of a disc brake system
• Designed for use in Wilwood rotor bolt kits, including Rotor Bolt Kit P/N 230-7666
• OEM Wilwood replacement part — direct factory fit with no modification required

This washer is a genuine Wilwood replacement hardware component, ideal for brake system rebuilds, rotor hat replacements, and maintenance of Wilwood drag race and performance disc brake kits. Keeping fastener hardware in proper condition is essential for brake system integrity and safety.