This is a very large Nut designed for a 1 3/4 inch bolt

They were supplied to Wylfa nuclear power station but were never used and then sold off as surplus

Manufactured by UK company Hydrobolt

The nut weighs 850g

height is 43mm 

width at widest point is 78mm

Interesting piece for your desk or if you happen to have some 1 3/4 inch bolts kicking around

Wylfa Nuclear Power Station

Wylfa nuclear power station (Welsh: Atomfa'r Wylfa) is a Magnox nuclear power station undergoing decommissioning. Wylfa is situated west of Cemaes Bay on the island of Anglesey, off the northwestern coast of Wales. Construction of the two 490 MW nuclear reactors, known as Reactor 1 and Reactor 2, began in 1963. They became operational in 1971.


Battery is for scale and is not included

I always use plenty of packaging and the correct size box to ensure all items arrive undamaged.

If you have any questions please ask.

Thanks for looking.

Tom