Harbor Freight Hickup

[luneywan]

OK let's see..

Add locktitle, locking washers, double nuts, "rocktight", and ding the threads.

At this rate it's going to take me a week to do one bolt.

Maybe I should weld them bolts as well.

Pip

[Alphacarina]

OK let's see..

Add locktitle, locking washers, double nuts, "rocktight", and ding the threads.

At this rate it's going to take me a week to do one bolt.

Just tighten all the bolts and then weld the joints of the frame pieces - It won't matter then if the fasteners come loose . . . . but they won't

Don

[angib]

...Joanne, the proper technical term for that process is known as "dinging" the threads

Plenty of British motorcycle parts used to require you to fix threaded things in place by a process called 'staking' where you used a centre punch to deform the bolt and nut to lock them together.

Mark you, this was the same sort of engineering that waterproofed your boots by the volume of oil leaking out of the motor.....

Andrew

[madjack]

...Joanne, the proper technical term for that process is known as "dinging" the threads

Plenty of British motorcycle parts used to require you to fix threaded things in place by a process called 'staking' where you used a centre punch to deform the bolt and nut to lock them together.

Mark you, this was the same sort of engineering that waterproofed your boots by the volume of oil leaking out of the motor.....

Andrew

Andrew, that is the same process I refer to with the "tech" term of dinging..............................

[Alphacarina]

'Staking' is a term which has made it across the pond . . . . my grandfather taught me how to 'stake a nut' to keep it from coming loose 50 years ago. You stake the nut threads . . . or peen the bolt threads after the nut is in place

'Dinging' on the other hand, is new to me - Never heard that 'technical term' before

Several methods are used to prevent nuts from working loose:

Peening the bolt end which extends through the nut.
Staking or deforming the nut threads.
Using lockwashers.
Using a jam nut with a regular nut.
Providing special threads on both nut and bolt.
Doping the mating threads with adhesives, lacquers, or special sealants.

Don

[luneywan]

Well, I'm glad I didn't do such a permanent job of assembly. Got some of the parts upside down.

Pip

[angib]

'Dinging' on the other hand, is new to me - Never heard that 'technical term' before

I worked for a while with a very highly experienced ex-machinist who had an interest in 'technical' terms. He felt that there it wasn't any way of knowing if one part was stuck in another part and a pulling force was required to get it out, whether it was 'yarking' or 'hoiking' that applied the bigger force......

But then he was the man who insisted that a "rattling good fit", for a fit with no resistance to movement, was an engineer's term.

Several methods are used to prevent nuts from working loose:

You left off the single most effective method:

Making no effort to lock the nut..... but some time later, wanting to get it undone.

I believe, from long personal experience, that this is the strongest locking method, frequently stronger than the bolt itself, though I understand you may want to claim it's a subset of the 'let it rust' locking method.

Andrew