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Our plumbers are so adept at making any thread fit another (using a pipe and shifter or, for rounded-off heads, king-stilsons) that E-S has omitted several threads that the true aficionado will surely recognise:
A variety of French Round threads as well as their asymmetrical trapezoidal thread and the Czech tire valve thread for several.
(Leckie uses only Molegrips to butcher mechanical fastenings).
__________________
David V
Lord Finchley tried to mend the electric light
Himself. It struck him dead and serve him right
It is the duty of the wealthy man
To give employment to the artisan
Last edited by Varley; 14th February 2022 at 15:55.
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