Triumph 2BA 82-4717 for Sidepanel and Brake Switch
2BA nuts are found in many capacities on British motorcycles from the 1950s through the 1970s. Some examples are pre-unit Triumph swinging arm end cap retaining pin, brake light switch, side panel, and reflector mounting. This listing is for (2) nuts.
2BA refers to a British thread form known as British Association, which is often found on Lucas electrical components. These zinc-plated nuts are approximately 3/16″ thick.
The 2BA nuts and screws are the most common BA hardware found on vintage British motorcycles, but the range spans from 0BA to 7BA, with 0BA being the largest.
A special range of spanners for BA nuts is available under part number TBS-10479.
We sell these Nuts with Bolts to mount Brake Light Switch Click Here
For Sidepanel Motif Mounting Screws on 750 Twins Click Here
The product images shown are for illustrative purposes only and may not be an exact representation of the product received. Manufacturers occasionally make minor cosmetic changes to items, such as color, finish, label, or design. These changes do not impact the item’s function or compatibility. Please contact us if you have specific concerns regarding appearance.







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