22-09-2018, 08:50 PM
The original studs were quite ductile. Seem to depress deeply before failure and the thread usually obviously stretched.
Failure is caused by brute force over tightening and/or by fatigue. if the nuts are or ever have been sufficently slack to allow movement of the wheel, fatigue is likely. Fatigue failure is characterised by minimum distortion.
Layers of paint etc can allow slight movement. The brake drum screws must be adequately sunk. The wheel nuts must not bottom onto the drum. Can be shortend slightly.
I have seen all manner of crudities for rivets. Burred screws the usual.
Failure is caused by brute force over tightening and/or by fatigue. if the nuts are or ever have been sufficently slack to allow movement of the wheel, fatigue is likely. Fatigue failure is characterised by minimum distortion.
Layers of paint etc can allow slight movement. The brake drum screws must be adequately sunk. The wheel nuts must not bottom onto the drum. Can be shortend slightly.
I have seen all manner of crudities for rivets. Burred screws the usual.