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Re: Screw backing out

Author: Chris P
Date: 2013-05-27 21:04

What make of clarinet is it and does this screw have a head on it?

If it does, then you'll probably need to get the screw refitted so it's tight in the pillar and the key barrel countersunk if it keeps backing out - this usually happens if the screw hasn't been properly fitted.

If the screw doesn't have a head, there's nothing to prevent it from backing out unless it has some kind of nylon lock on the thread - either a hole drilled through the thread and a piece of nylon filament fitted in there to hold it in place or a slot miled along the length of the thread and a nylon strip fitted in it for the same purpose. These can wear out and will need replacing.

If it's a headless screw and doesn't have any kind of inbuilt lock, then a drop of clear nail varnish on the thread before screwing it in will serve to lock it in place.

If you can gain access to the screw without the risk of scratching the RH F#/C# touchpiece, then remove and inspect it, then check to see if it will tighten fully without binding the ring keys if it has a head. If it doesn't, then unscrew it and apply a drop of clear nail varnish to it and screw it in until the ring keys bind, then back it off so they move freely again.

Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.

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Author

Date

Screw backing out new

Orlando Natty

2013-05-27 20:55

Re: Screw backing out

Chris P

2013-05-27 21:04