UNF 12 Point Flanged Locking Nut Alloy Steel wanted.

[Gritineye]

As title where can I buy a small quantity of these, various UNF, needed for an new engine build.

 

[Woody.v8]

As title where can I buy a small quantity of these, various UNF, needed for an new engine build.

They sound like something ARP would make?

 

[Popcorn]

Fusion Fixings | Quality Without Compromise

One of the UK’s leading retailers of Fixings and Fasteners, specialising in providing an extensive range of over 20,000 sizes, materials, and threads.

www.fusionfixings.co.uk

 

[RWD3M]

The nuts you are after are prodominantly an aerospace fastener.

Depending on diameter, I suggest you need an NAS1805- (insert diameter in 1/16 of an inch)

e.g. for a half inch UNF you want NAS1805-8.

However, they are 'kin pricey!