Backnuts

We can supply a full range of industrial grade UPVC plastic backnuts, also known as locknuts from stock, these plastic fittings are available to order here on our website in sizes between 1/2" (DN15) and 4" (DN100) nominal bore and can be delivered across the UK.

All of our UPVC pipe fittings, which includes these backnuts, have been manufactured in conformance with the BS 4346-1 standard under rigorous quality control guidelines by Comer Italy or Onyx, they also come with a female BSPP parallel thread which conforms to BS EN 10226-1 and ISO 7-1. All of our UPVC locknuts are suited to operation at pressure and temperatures of up to 10 bar (PN10) and 60°C respectively.