Dixon Backnut, 1-1/4

This Dixon backnut is a female-threaded BSP nut in galvanised malleable iron that locks a threaded fitting or pipe end in position. There are 5 sizes: 1/2", 1", 1-1/4", 2", 4". The galvanised malleable iron BSP fittings are ISO 5922 malleable cast iron, hot dip galvanised to ISO 1461, with ISO 7-1 pipe threads, for general low-pressure air and water at a working pressure of 150 PSI (about 10 bar).

Where this product is used

• Locking a threaded pipe end or fitting through a wall, plate or tank flange so it cannot back off
• General low-pressure air and water pipework

Features

• Backnut, BSP thread
• End connection: Female BSP thread
• Body: ISO 5922 malleable cast iron, hot dip galvanised to ISO 1461
• Working pressure: 150 PSI (about 10 bar), for general low-pressure air and water
• Sizes: 1/2", 1", 1-1/4", 2", 4"

Key specifications

Choosing the right option

Choose the size from the thread you want to lock, not from the hole it passes through. BSP threads do not mate with NPT or metric threads, so confirm the thread on every mating part before you order.

Related Dixon fittings: Dixon Cap BSP Screwed Galvanised Malleable Iron, Dixon Screwed Socket Plug BSP Galvanised Malleable Iron and Dixon Hex Nipple BSP Galvanised Malleable Iron.