Our range of DIY lighting hardware for specialist lighting construction is a range of components specially created to make vintage industrial style light fittings. Be aware different standards M (Metric), BSB (British Standards Brass) and BSP (British Standard Pipe), are not compatible with each other and will not screw together without the use of an adapter. For example, 1/2″BSB & 1/2″BSP components vary from each other greatly, as the former is a brass lighting standard and the latter is an expression of water pipe flow.