Ok
T&K engineering Northampton do rolled threading for bolts ect would say more for 1000 down prototype ect.
ARP in USA is another
are the bolts going to be Ti? company that used to do the bolts for Helger think they were from Bristol area.
Umbrako in Irland the Qnty you are looking at and the spec you will need.
the hard bit will be the 100% ins and batching with lot numbers all above will be able to do this.
good luck.
Phill
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