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Product Details

Fits most brass and nylon back nuts.

Technical Specification
Manufacture ID TBNS1
Delivery details
Order value: Under £10 £10 & over
Express usually Next Business Day before 6pm
Due to temporary service restrictions our estimated delivery time is currently 2-3 business days
£5 Free
Turbo usually Next Business Day before 12 noon Temporarily unavailable £10 £5
Remote areas standard delivery (2-4 days) £5 Free
Order Value: Under £25 Over £25 but less than £75 £75 & Over
£10 £5 Free

Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

More about Delivery & Returns
Click & Collect details
If you are using our Click & Collect service please note the following:
  • Order online or over the phone and collect in branch from 5 minutes later.
  • Ensure you check stock is available for collection at your chosen branch.
  • Check branch opening hours to ensure you have sufficient time to collect.
  • For items not available for same day collection, place order before 9pm Mon-Fri (4pm Sun) and you can collect Next Business Day (Mon-Fri) after 3pm.
  • If we have your mobile number, we’ll send you a text when your order is ready to collect.
Tap Backnut Spanner 1/2" - 3/4" is rated 3.9 out of 5 by 27.
Rated 5 out of 5 by from Very efficient delivery Very good tool, unfortunately doesn’t fit my basin tap ,will come in useful for the bath though
Date published: 2020-02-23
Rated 5 out of 5 by from strong fit Just what i needed to get a tap back nut off.Tap was difficult to take off,and had to use excessive force.Spanner held up well.
Date published: 2019-12-07
Rated 5 out of 5 by from Tight-space backnut spanner Great for tightening/loosening backnuts in very tight spaces where other tools have no room to turn.
Date published: 2019-11-20
Rated 5 out of 5 by from Great Spanner for sink Back Nuts Worked well on plastic back nuts (27mm across flats hexagon size)
Date published: 2019-11-12
Rated 3 out of 5 by from Doesn't fit imperial backnuts As others have said, this is a metric spanner and the nuts supplied with waste kits seem to be imperial, so it was too small for the 1.1/4 backnut supplied with my new basin waste. I followed the advice of another reviewer and filed the plastic backnut down. Worked a treat then, easier to use than anything else I've tried. But definitely wrongly advertised for imperial sized nuts. I used a screw driver as a bar to turn it.
Date published: 2019-11-11
Rated 3 out of 5 by from No use Does not fit the backnuts supplied by Toolstation
Date published: 2019-09-30
Rated 2 out of 5 by from Doesn't fit I bought this, a 1/2" and a 3/4" brass backnut, all from Toolstation. The spanner fitted the 3/4" but not the 1/2". I shall be returning the spanner.
Date published: 2019-08-12
Rated 1 out of 5 by from It is definitely not 1.25 inches Bought this 04-Aug-2019 from Bracknell branch. Packaging says it fits most 1 1/4 inch back nuts but the item is marked 46x50 mm which is 1.81 x 1.96 inches.
Date published: 2019-08-04
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