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Original Syle bolt source

Number_6

Jedi Warrior
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This might be a little esoteric but does any one know of a source for the original style fine thread bolts that seem to have been used on most LBCs of the 50's and 60s?

They had a very distinctive head pattern that is quite different than the common Grade 5 bolts that are available in the local Harware stores or Home Depot type outlets in the U.S.. I've searched around on the internet but haven't found anyplace that has them.

The original style bolt heads had the Letters "GKN" on the head and a "S" with a round circular depression in the middle of the head along with the three lines indicating that it is a Grade 5 hardness bolt. The "GKN", I believe, refers to the hardware manufacturer in the UK and stands for "Guest, Keen and Nettlefolds".

The American style bolts simply have a "J" and the three Grade 5 hardness lines.
 

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I'd try the Roadster Factory. Charles is a bit of a fanatic about originality, so if they are available anywhere, TRF will stock them.
 
or, try going to the source! GKN History An interesting little read, you might even pick up a spare overdrive from them because they owned Laycock at one time according to this..
 
TR4nut said:
you might even pick up a spare overdrive from them because they owned Laycock at one time according to this..
Possible, but I'm pretty sure they sold all their inventory along with the overdrive business to Gear Vendors:
https://www.gearvendors.com/about.html
 
Possible source

Clarke Spares & Restorations.
An outstanding source for concours quality clips and bolts, screws etc.
90 West Swamp Rd, Doylestown, PA, 18901
215 348-0595; Fax 215 348-4160.
 
Thanks for the leads guys, I'll check them out.
 
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