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Back Nuts

Back Nuts

Brass, plastic and alloy flanged back nuts with British Standard Pipe Threads (BSP).

Typical back nut applications
Back-nut SizeApplication
1/2 inch BSPBathroom basin and kitchen sink taps
3/4 inch BSPBath taps
1-1/4 inch BSPWash hand basin / bathroom sink wastes
1-1/2 inch BSPKitchen sink wastes and bath wastes

** BSP thread sizes are measured a special way - have a look at our information page for more details **

  • 3/4" BSP Plastic Flanged Back Nut

    3/4" BSP Plastic Flanged Back Nut

    This 3/4 inch BSP plastic flanged back nut suits traditional bath taps (colour may vary : black / white). The outside diameter of the male 3/4 inch BSP thread that this backnut fits onto measures 26.44 mm / 1.041 inch. Bathroom basin and kitchen sink taps use a nut with a smaller 1/2 inch BSP …

    £0.83

    £0.83

  • 1-1/4" BSP Plastic Flanged Back Nut

    1-1/4" BSP Plastic Flanged Back Nut

    This 1-1/4 inch BSP plastic flanged back nut suits bathroom wash hand basin / bathroom sink waste fittings.

    The outside diameter of the male 1-1/4 inch BSP thread that this backnut fits onto measures 41.91 mm / 1.650 inch.

    Colour may vary.

    £1.99

    £1.99

  • 1-1/2" BSP Plastic Flanged Back Nut

    1-1/2" BSP Plastic Flanged Back Nut

    This 1-1/2 inch BSP plastic flanged back nut suits bath or kitchen sink waste fittings, it's also suitable for toilet cistern syphons.

    The outside diameter of the male 1-1/2 inch BSP thread that this backnut fits onto measures 47.80 mm / 1.882 inch.

    Colour may vary.

    £1.98

    £1.98

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