Adaptor French Thread Male - 10mm Female Brass (Non Standard)
Converts an Old French thread into M10 x 1mm thread from which you can carry on with standard products. We call it French Thread, and have shown this thread to many engineers and none of them can quite define it! This little adaptor has solved so many problems on beautiful old chandeliers that restorers are trying to convert with modern electrics.
Before starting any electrical work, always switch off at the mains. If in doubt consult a competent electrician