The grip is designed for round 3 core PVC.
SOLID BRASS CORD GRIP LAMP HOLDER BAYONET FITTING BRITISH MADE PENDANT LIGHTING
OLD ENGLISH SOLID BRASS CORD GRIP LAMP HOLDER BAYONET FIT BRITISH PENDANT LIGHTS
NICKEL PLATE SOLID BRASS CORD GRIP LAMP HOLDER BAYONET FIT BRITISH PENDANT LIGHT
ElekTek B22 BC Bayonet Brass Cord Grip Ceiling Pendant Unswitched Lamp Light Bulb Holder with Shade Ring - For use with Ceiling Rose and Lighting Flex (7mm Max. Dia.) - Made in UK
ElekTek B22 BC Bayonet Brushed Antique Brass Cord Grip Ceiling Pendant Unswitched Lamp Light Bulb Holder with Shade Ring - For use with Ceiling Rose and Lighting Flex (7mm Max. Dia.) - Made in UK
3 x brass cord grip lamp holders B22 bayonet bulb earthed threaded skirt