Screws no longer hold on my Technics

[CableMaker1]

Over time, some screws (just a few) do not hold tight in place in the cavity of the Technics, and in one instance, a screw does not tighten in place that holds the cavity to the aluminum base of the unit.

Anyone have any ideas on using some sort of filler to put into the cavity in an attempt to recreate the screw threading into the cavity?

I was thinking of using glue as a filler - let it dry and then place the screw into the cavity to restore/recreate the threading.

Any thoughts?

[DSJR]

Either that (a metal glue as Linn use in their sub-chassis) or a larger diameter self tapping screw?

[Welder]

JB Weld will do it if you're prepared to drill and re-tap.

A word of caution. Its worth drilling out the old thread first. Give yourself a nice clean start for the weld to grip on.

[StanleyB]

Workshop engineering trick:
Get a rubber band like the one the postman uses to keep bundles of mail together.
Cut a piece of about 10mm length off it.
If it is a wide type rubber band then cut the width down to about 2mm.
Put that piece of rubber band in the screw hole and then then turn the screw into the hole.

[Rare Bird]

Bodgers unite :lol:

[CableMaker1]

JB Weld will do it if you're prepared to drill and re-tap.

A word of caution. Its worth drilling out the old thread first. Give yourself a nice clean start for the weld to grip on.

Thanks for the tip. The screws come out no problem. If I drill out the thread as you suggest, use the JB Weld and let it harden, will I be able to drill through it for screw insersion ? Sorry, I never used JB Weld before.

I would imagine carpenters glue would work wonders also. Its one of my favorites.

[CableMaker1]

Either that (a metal glue as Linn use in their sub-chassis) or a larger diameter self tapping screw?


A larger diameter screw sounds like a good idea. But I do like keeping the screws unified in case I plan to disassemble the turntable, which would help avoid a screw mixup.

The metal glue does sound interesting. Do you have any any recommendations?

[The Grand Wazoo]

Try the rubber band trick as described above by Stan and also try wrapping PTFE tape around the threads of the screws before you do anything as drastic as using adhesives, the wrong sized screws............... or a drill, God forbid.

[Welder]

I don’t know what the screw is holding or how hard you need to tighten it up.
If you’re not confident and have some experience with metal repair, drilling and tapping new threads, then perhaps you better bodge it.

However, yes if you drill out the old thread, use the JB Weld properly leaving a small lip in a countersink furthest from the screw entry end and drill and tap the hole right it would be as strong as the original thread.

You could of course try using one of the heavier duty Loctite thread adhesives if the thread isn't too badly knackered.