Dubro Split Washers 1/4-20 Tool - DUB651

The Dubro DUB651 split washers are 1/4-20 fastener hardware designed for use in RC aircraft builds and repairs. Split washers—also known as lock washers—sit beneath a nut or bolt head to resist loosening caused by vibration, making them a practical choice anywhere in an airframe where fasteners are subject to engine or prop vibration. These are a straightforward, dependable bit of hardware from Dubro, a brand well known among RC builders for quality fasteners and accessories.

Key Features

• 1/4-20 thread size matches standard RC aircraft hardware in that fastener family
• Split washer design bites into the mating surface under load, resisting vibration-induced loosening
• Suitable for use with metal and composite airframe components where a secure, shake-resistant joint is needed
• Dubro hardware is manufactured to consistent dimensions, making these a reliable choice for builders who need parts that fit without fussing

What's Included

• Dubro DUB651 split washers, 1/4-20 (quantity as packaged)

What You Need

• Appropriate 1/4-20 bolts or screws for your application
• Compatible nuts if not already installed in your airframe