Magnetic drain plug

["Malcolm Cox" <malcox@napanet.net>]

Does anyone know of a source of a magnetic drain plug for my MGA (perhaps
similar in MGB or sprite?) gearbox and back axle.  This is a tapered pipe
thread style, thread about 1" OD ( I can look it up if I get a lead)
To be fussy, I also want one which ends in a hexagon which I can drill for
safety wire, seems most drain plugs for this marque have either a square
socket or hex socket which does not lend itself to safety wiring.
Malcolm Cox