1/2 inch coach bolts wanted
 

Does anyone have a source of old 'big head' half inch dia. coach bolts please (also now known as cup square bolts)?
The thread is immaterial since the shanks will have to be cut and lengthened.
I have searched ebay without success. I need about 20 number.

Please PM me if you can help.

Coach bolts.
 

What length do you require .?

Try these people. All sizes and finishes.

https://www.bolts.co.uk/coach-bolts-...BoCm_8QAvD_BwE

Steve

Thanks Sandra. Several lengths from 3 inches to 36 inches.
We are in the process of restoring the second of two Wallis traction wagons and I have run out of suitable bolts from my stash of odds and ends.

Thanks Steve, but no use I'm afraid. Theirs are all modern stock where the curved pan head has a shallow radius
The ones I am trying to match have much 'fatter' plumped up heads.

If I can't find a source of original old stock I will have to use the modern equivalents, but I will make every effort first.

John, now very difficult to procure. I sold a heap of old stock I had to a guy restoring two Dennis Lorries (1908 and 1911).

With respect to finding something with a suitable head and cutting/welding to suit, have you tried the USA? you may then be able to weld 1/2 whit threaded bar onto the heads.

Perhaps a message to Kibworth DIY Hardware?
He is constantly buying and selling old stock from various sources.
https://www.google.com/search?q=kibw...t=gws-wiz-serp
Cheers, Andy

Thanks Hedd, I'll try that.

Thanks Andy, He has nothing in stock at the moment but I'll keep him in mind.

John

By accident I came across this yesterday

https://www.ebay.co.uk/itm/264522758...Bk9SR4qnuvnAYg

You may need a kings ransom to buy the stock however.

You could machine up a batch of heads and braze them on to threaded rod.
Or you could try knocking up a head on plain bar. Given the quantity of rivets involved in this forum, it is not a great difference.
Martin

Thanks Hedd, I saw this advert a while ago but it seems only three of the bolts pictured have the 'fat' or bulbous heads I would prefer. As you imply it would be expensive..It may be that I need to accept a lower standard of authenticity or make my own.

Thanks Martin. You are right, it should be possible to make up a female former into which a length of 1/2 bar, with the end suitably heated, was inserted and then press the top with a rivet snap, so forming the round head and the squared shank below it.
I am however in contact with a TT member who apparently has a stock of suitable coach bolts. I am awaiting details.

Either way the help offered by the respondents to my query is very rewarding and an excellent example of the goodwill in the road steam movement. Thank you all.