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5/8th tap washer not 5/8ths in diameter!?

Discussion in 'Plumbing and Central Heating' started by eveares, 2 Jul 2018.

  1. eveares

    eveares

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    I bought some replacement 5/8 tap washers from screwfix, however they are larger than 5/8ths of in Inch in diameter!

    What tap washers do I need for my bathrooms sink tap, the old washers are 5/8ths in overall diameter.

    Regards: Elliott.
     
  2. Nige F

    Nige F

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    Never heard of 5/8 washers - and screwfix list only "Pegler 1/2 inch" and "Holdtite 3/4 inch":unsure:
     
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  4. Hot&Cold

    Hot&Cold

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    Why not reduce the diameter of the over size washer :?:.

    Hopefully the tap is worth the effort ie has no other defects :idea:
     
  5. andytw

    andytw

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    Last edited: 2 Jul 2018
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  7. andytw

    andytw

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    Couple of comments from the Screwfix user comments on the 5/8" washer
    =======
    " The product looks like any other tap washer, and will no doubt do the job fine.
    However the sizing system seems completely bonkers!
    I measure the diameter of the washer that needs replacing - its 5/8" - then find the 5/8" washer in your catalogue. Check the specification - yes, it says 5/8" diameter - and order. The product is embossed 5/8", but what is its diameter? Over 3/4"!
    I then have to change it for one stamped 3/8", which is actually about the 5/8" I require.
    How crazy is that! "
    =======

    " Re: size confusion - taps use BSP size references. To get the BSP size measure the outside diameter and then subtract 1/4". So a washer that measures 5/8" is a 3/8" BSP washer (5/8 - 2/8). Helps if your are pre-decimal vintage but not much when it comes to BSP ! "
     
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