09/08/2026
Simple solution for anyone with a Sledge Hammer 333 wanting to fit the BGM/MB manifold rubber.
These are a good manifold rubber but are designed for M8 screws, so using an M6 screw through the 8mm hole isn’t ideal, something I’ve seen done many times with these manifolds.
The simple solution we came up with is the use of a Piaggio stepped screw. It has an 8mm shank to properly centre and fill the 8mm hole, then steps down to an M6 thread.
They’re available in both Phillips and Torx head options.
Simple fix, proper fit. 👍🔧