Replacement chainring bolts from Problem Solvers. Problem Solvers. Anodised Alloy. Length 8mm. "Double" size means they are sized for mounting two chainrings through your spider. This method will take1-2 weeks to arrive, or more if in a remote location.
The Problem Solvers DP0911 Braze-On Front Derailleur Adaptor allows you to run a braze-on Front Derailleur on bikes that do not feature a Braze-On mount. In short, it clamps on to the seat tube so you can use your Braze-On Derailleur on a conventional frame with a standard down tube (no braze-on mount point) and securely holds your FD at the height you set without risk of it sliding down at all.