Can't seem to find long UNC bolts

[e635815]

Guys,

I have rounded of the head of the long bolts holding the alternator bracket to the engine block on a serpentine RV8 engine.
These are 3/8" UNC flanged bolts in length up to 5".
I can't seem to locate an on-line shop selling them (I leave in France).
Can you help me out? I am ready to call any business and deal with it directly for the shipment .
The usual suspects (Namrick) has been tried with no success.
Thanks and regards
Philippe

[Bluebottle]

Just bought this on fleabay:

TVR CHIMAERA,AND GRIFFITH STAINLESS STEEL, NUTS BOLTS SCREWS ,UNDERBONNET KIT

Could be worth emailing the seller if you don't get an answer.

[s p a c e m a n]

Just had a search and didn't realise they were difficult to find, have you considered tapping it for a different thread?

[e635815]

Thanks for the eBay Link. I'll Check with the shop owner.
As far as tapping another diameter in the block.....noooooooo!
I don't feel rave enough.

[e635815]

Thanks for the eBay Link. I'll Check with the shop owner.
As far as tapping another diameter in the block.....noooooooo!
I don't feel rave enough.

[Twinkam]

Weld a nut onto a length of studding (threaded rod)... you can have any length you like then!

[eliot]

or namrick

http://namrick.co.uk/acatalog/Home_U_N_C__Hex_Head...

[e635815]

Namrick doesn't have all of the sizes Required.
Welding a nut to threaded rod is a big no on long bolts. The threaded portion has less resistance than the plain one.
On big bolts a full threaded length is a weak point.

[Cerberus90]

How about this

http://www.ebay.co.uk/itm/3-8-UNC-3-8-16-x-5-Hex-B...

[ephemera]

Fabory.com has shops in France and have them as normal hex bolts

[Twinkam]

e635815 said:

Namrick doesn't have all of the sizes Required.
Welding a nut to threaded rod is a big no on long bolts. The threaded portion has less resistance than the plain one.
On big bolts a full threaded length is a weak point.

Not really a concern for an alternator bracket!

[nrick]

Try alcap in Gloucester ask for mark and say Neill sent you

[e635815]

Cerberus90 said:

How about this

http://www.ebay.co.uk/itm/3-8-UNC-3-8-16-x-5-Hex-B...

This is the bolt I have found. Unfortunately they only have the longest bolt available.
It pains me to browse several shops in order to find all what I need and be ripped-off by the transportation fees.

[steveo3002]

can you get all you need sent to someone in the uk , then have them send it all out at once ? uk shiping shouldnt be alot

http://www.mackay.co.uk/ im passing that place next week if they have what you need?

[steveo3002]

http://www.ebay.co.uk/itm/3-8-UNC-3-8-16-x-5-Hex-B...

[kris450]

Does this help ? Appreciate its not flanged but a washer in there could do the trick possible ?

http://www.westfieldfasteners.co.uk/A2_ScrewBolt_H...

[e635815]

I have purchased the Stainless Steel bolt on eBay listing.
The lenght is out of the normal range you would normally find in shops (online and real), which make it hard to find.
I ever you come across these, don't hesitate to stock pile them and resell on here...