Does anyone know the thread used on the cable entry/exit fitting on a Lucas MT110 rear lamp?....Ian

email (option): ian@wright52.plus.com

Ian I'm just about to fit this one to my M20. I make the thread 3/8 x 40tpi (ME). But I haven't got the benefit of a "shadow Graph" thingy for my thread gauges ...Just a magnifying glass.

I know wire these in with a 21W single filament bulb with a 25W x 1 ohm resister in the tail lamp cable which reduces the glow to the equivalent of 6-8W. The brake lamp cable is wired in the other side of the resistor to use the full 21W. Ron

email (option): ronpier@talk21.com

I have a Czech replica MT110..It's an excellent copy but that thread is definitely different to your original...I'll have to get out my micrometer, thread gauges and books to sort out what it is and, of course, it could be Metric....Ian

email (option): ian@wright52.plus.com

OK, the wiring conectors have this thread, (THREAD, 0,275" X 36) I would think they are the same?

I'll try that in a minute.

Lex

email (option): welbike@welb**e.net

Brass Thread from 1/4" to 7/16" inclusive can be ether 32tpi or 40tpi for a given diameter...Ian

email (option): ian@wright52.plus.com

email (option): ronpier@talk21.com

Ok, that means my drawing I was given is wrong, so got both items out, and they are both 40tpi.

And the diameter of the thread of the connector of the MT110 is 9,mm. not a round imperial size, that would be around 23/64"

The wire connector is 7mm. and 9/32"

Cheers,

Lex

email (option): welbike@welb**e.net

I made some of these screws in the past .also have 2 from tsjechie..they are indeed different.they have it made to attach 2 wires instead of 1 also the base is not have the rubber inside.
But anyway they are the best copy in the world.

Roy...Is the thread 10mm by 1mm pitch on the Czech twin filament MT110s?....Ian

email (option): ian@wright52.plus.com

It looks like m10x1.25 ian

Who are you getting these from? I need ten or so.

email (option): britool51@hotmail.com

https://www.vintage-replica.cz/indexE.htm

Ron

email (option): ronpier@talk21.com

know wire these in with a 21W single filament bulb with a 25W x 1 ohm resister in the tail lamp cable which reduces the glow to the equivalent of 6-8W. The brake lamp cable is wired in the other side of the resistor to use the full 21W. Ron

Hi Ron
Can you pleaase tell me where you sourced resistor for stop/tail function? I have a nice old wipac rear light I want to use on a Triumph I am building with a single filament bulb and would like to convert to stop/tail..
Cheers Dave

Just a few quid on ebay Dave. I've bought them even cheaper from Hong Kong with free delivery. Don't know why the bother?

https://www.ebay.co.uk/itm/25W-Golden-Aluminium-Load-Resistor-Wirewound-Various-Values-High-Quality-New/122180980450?_trkparms=ispr%3D1&hash=item1c728dcee2:g:gaoAAOSwAuZX2Adc&amdata=enc%3AAQAFAAACcBaobrjLl8XobRIiIML1V4Imu%252Fn%252BzU5L90Z278x5ickkp2NA0WuhQytmt4dbStg00IbHxqhW20obj1GsHEa%252BrJS5ACpJQSDF29b8wDc53pb8jKKQof1XSmSyKUkBxzXej8zpB94W45h2HohrxyhYmVdbZESJb2ek5KTbfA39swIhdgYZqVnIgQsCGgQwH66YV4TRFGfna0gyn7EdER0Fqg663PkOqWhi17hU%252FU8rBSK3csnLzVlcWtbBInC2SNa%252FObL5zGbgpLXw2PQZ9kqnUVOM4I%252B3GafhB789hkMv8%252B9HggRyS7M5TIBH%252F4Qo0TFw6Lggz7AP4mwZqT2a7S67EuYIswjrx2IUpMWm6QMqd3%252FCeSwW8kpTPUHpxqGaXiLTbS%252Bs99cF6%252BC3H%252FWmiLxuwlMd2UnVrH8fx4pfi%252FpVZotD7nDgMCxKRzT9A3F8DdBzr%252FELo6RYzKa2Hk6h7cNWu1a4ycKvNNC3em7jxfOQJD5gAXqmJKC5XeO56DfHy%252FisIh4IzBcGYgvGwdKlYMfI8qAOvRLT%252FvdnBlXTMbjpCmGK0CzMkUg20%252Bt%252F9iRHqiO%252F0a%252FFlj9fifvnxfMHoAE5si06LkNoLyfVmfRNkNXOPpkhzmBtvwJ6zOY03R5W%252BtWbJmn0azeTIpv22r%252FU4Usbea2Lze89ie9RrYLqEsUD%252BBZTBSdO4x0lslvRCo3%252BhyWamOe0b3cuaqBEGCMQOlEh1A%252F%252FzWgNr0nKQ%252B%252Fy1I%252BAN%252F7bjD2hZBEnI0gX%252BUOK8mmhi4gOHQzyGXTvt8SjkEpXiH7XPv5uew2K9dWs3P42C9XNCDP61ClMbPCdVSdsbR3tMA%253D%253D%7Ccksum%3A1221809804508c57ab5bdf6941429e0f92fa2cbd4c3c%7Campid%3APL_CLK%7Cclp%3A2334524

Ron

PS the site is not working as it should so you might have to copy and paste the ebay number.

email (option): ronpier@talk21.com