3/8" BSP Brass Flanged Back Nut

The outside diameter of the male 3/8 inch BSP thread that this backnut fits onto measures 16.66 mm / 0.656 inch.

£1.54

1/2" BSP Brass Flanged Back Nut

This 1/2 inch BSP brass flanged back nut suits traditional kitchen sink / bathroom basin taps.

The outside diameter of the male 1/2 inch BSP thread that this backnut fits onto measures 20.99 mm / 0.825 inch.

£1.14

1/2" BSP Brass Wide Flanged Back Nut

This 1/2 inch BSP brass wide flanged back nut suits traditional kitchen sink / bathroom basin taps.

The outside diameter of the male 1/2 inch BSP thread that this backnut fits onto measures 20.99 mm / 0.825 inch.

£1.58

3/4" BSP Brass Flanged Back Nut

This 3/4 inch BSP brass flanged back nut suits traditional bath taps.

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 thread.

£1.48

3/4" BSP Brass Wide Flanged Back Nut

This 3/4 inch BSP brass wide flanged back nut suits traditional bath taps.

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 thread.

£1.66

1" BSP Brass Flanged Back Nut

The outside diameter of the male 1 inch BSP thread that this backnut fits onto measures 33.25 mm / 1.309 inch.

This nut isn't used for kitchen or bathroom taps, please don't buy it for that purpose.

£2.32

1-1/4" BSP Brass Flanged Back Nut

This 1-1/4 inch BSP brass 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.

£3.42

1-1/2" BSP Brass Flanged Back Nut

This 1-1/2 inch BSP brass flanged back nut suits bath or kitchen sink waste fittings.

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

£3.49

2" BSP Brass Flanged Back Nut

The outside diameter of the male 2 inch BSP thread that this backnut fits onto measures 59.61 mm / 2.347 inch.

£7.16

1/2" BSP Plastic Flanged Back Nut

This 1/2 inch BSP brass flanged back nut suits traditional kitchen sink / bathroom basin taps (colour may vary : black / white).

The outside diameter of the male 1/2 inch BSP thread that this backnut fits onto measures 20.99 mm / 0.825 inch.

£0.71

3/4" BSP Plastic Flanged Back Nut

£0.83

1-1/4" BSP Alloy Flanged Back Nut

This 1-1/4 inch BSP alloy 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.

£3.00