Howard1784
Well-Known Member
Bought an NOS booster kit and found these nuts "ovaled" so to speak. Guessing manufacturer defect? I wont use them so I dont jack up the threads
NOS booster mounting bolts oddity
- Thread starter Howard1784
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They are a type of locking nuts.
You photo makes them look REALLY oval but they should be fine.
You should be able to screw them on by hand a few turns till they hit the smashed (oval) part then it will take more force.
They work like this type of lock nut.
The dimple compresses the threads and that puts force on the bolt.
If it makes you nervous a high temp Nyloc nut would work.
You photo makes them look REALLY oval but they should be fine.
You should be able to screw them on by hand a few turns till they hit the smashed (oval) part then it will take more force.
They work like this type of lock nut.
The dimple compresses the threads and that puts force on the bolt.
If it makes you nervous a high temp Nyloc nut would work.
Last edited:
Howard1784
Well-Known Member
Thank you so much for the info, I appreciate it!
The industry name for them are "Stover B locks nuts". They were used a lot on SBC stamped steel rocker arms for about 5 decades.
junkyardhero
Well-Known Member
same here, i've always heard them called stovers.
Stover B's nearly as ubiquitous as Bofa D's nuts.
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