Discussion in 'Electricians' Talk' started by spark&half, Sep 28, 2009.

  1. spark&half

    spark&half Active Member

  2. cliffy brown

    cliffy brown New Member

    been using them for years, dead handy on shower changes when cable is a bit short
  3. bluevelvet

    bluevelvet New Member

    The last time i came across some of those in an old farmhouse,they where made out of porcelain
  4. wally2

    wally2 New Member

    I thought columb would be popping up, he posted his fine pic of a screwit on here a year or 2 back.
  5. Removed 4

    Removed 4 New Member

    Of all the connectors for stranded wires that I've seen, there's never been a more reliable device - including the later Wago devices. They have simply fallen into disuse, but they are certainly not banned by any Regulation in any country, when placed in a proper enclosure.....

    American fhp motors have always used flying leads with these 'screwits' - or wire nuts as they call them (unlike the British and Continental machines with a fixed terminal block) because they are so resistant to vibration. The modern type now has a locking screw - not that it's ever been needed.

    I defy anyone to pull away a properly made Screwit connection. It just can't be done.

  6. Adam Amp

    Adam Amp New Member

    So could I use screwits in an enclosure as a non maintained joint in an inaccessible location rather than crimping then?
  7. Removed 4

    Removed 4 New Member

    I think you already know the answer to that one, AA.

    Personally, I would trust a 'Screwit' connection over a crimp joint anytime (unless I had actually done the crimp joint myself). Some people are dangerous with a pair of crimps in their hands.........

    No, it can't be classed as a non-maintenance joint, reliable that it is.

  8. Adam Amp

    Adam Amp New Member

    You're a big olde, cavernous font of information Lucia:)
  9. lamps

    lamps New Member

    never seen a screwit how do they work is it simply insert cable and twist
  10. spark&half

    spark&half Active Member

    Correct lamps..

  11. My Name Is Death

    My Name Is Death New Member

    been using them for years, dead handy on shower
    changes when cable is a bit short

    I like the dead reference

  12. Stoday

    Stoday New Member

    That advert's misleading.

    Says that size is used for cables 9.9 to 12mm dia. In fact, the max wire dia for that size is 10AWG, which is 2.5mm dia or 5mm².
  13. jumboscruit

    jumboscruit New Member

    If you have good eyesight and get hold of one of those old porcelain connectors,the name on the end would read "scruit".

    I seem to remember they were available in "midget" or "jumbo" sizes.(Maybe I should have used the smaller size as my name, as I mostly used them).

    They were very good, and were used all the time back in the 60's, especially thoses J boxes without any connectors, such as the BICC RB4 type. Mind you, they could be difficult to undo,without making a mess of the joint.

    Modern plastic ones have a threaded brass insert I believe.


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