Knott Avonride Security Safety Ball - 575006

Knott Avonride Security Safety Ball - 575006

Trailer items can either be shipped, collected or fitted by us. We offer full servicing and replacement of all unbaked trailer parts at our base at Queen Mary Sailing Club in Surrey. Click here for full details.

The Security Ball Blue for 50mm (1.97") ball hitches (Knott 575006) is a simple, effective anti-theft insert for trailer couplings. Made from a hard-wearing polymer in a high-visibility blue finish, it pushes into the coupling head to block access to a standard towball, helping to prevent unauthorised towing. Designed for use with common 50mm (1.97") ball hitches, it suits general-purpose trailers, plant and equipment trailers and caravans. The compact, one-piece design is easy to fit and remove by hand, making it a practical security aid for day-to-day use at home, on site or in storage. Built for durability and weather resistance, the Knott Avonride 575006 offers dependable protection with minimal effort.

Key Features

• Fits standard 50mm (1.97") ball hitches for a snug, secure fit
• Blocks the coupling head to help to prevent unauthorised towing
• Durable polymer construction resists corrosion and harsh weather
• Quick push-in, pull-out fitting with no tools required
• High-visibility blue colour for easy checks at a glance
• Compact and lightweight for glovebox or toolbox storage
• Suitable for a wide range of trailers, from utility to plant and leisure use
• Smooth, solid form factor with no moving parts to maintain
• Knott Avonride part number 575006 for straightforward identification

Typical Applications
Use when parking or storing trailers at home, in boat parks, at sailing evernts, on driveways, in compounds, at works depots or on campsites. Ideal as part of a layered security setup for general-purpose trailers, plant trailers, boat trailers, box trailers and caravans that use a 50mm (1.97") ball hitch.

Other ways to describe this part

• Hitch lock
• Trailer lock
• Tow ball lock
• Dummy towball
• Coupling insert
• Anti-theft hitch ball
• Trailer coupling plug
• Hitch plug
• Coupling protector