The Clarinet BBoard

The Clarinet BBoard The C4 standard

New Topic | Go to Top | Go to Topic | Search | Help/Rules | Smileys/Notes | Log In

Previous Message | Next Message

Re: Rod screws needing replaced...help?

Author: Chris P
Date: 2018-04-06 19:04

The more recent B&H clarinets used mostly 2.2mm diameter rod screws with an M2x0.4 thread (or the imperial equivalent).

If you're replacing all the rods, then you can use whatever diameter steel for them and the thread size of your choice if it's similar so they all have the same diameter and threaded screws for consistency.

The problem with some antique clarinets is the rod screws often had a wider diameter head, so in that case it's probably better to bush and redrill all the pillars to accept completely parallel-sided rod screws.

As both screws and key barrels will be worn, you're best going oversize and also buying or making a reamer to ream all the key barrels (and pillar heads) to the new diameter. Key barrels can be swaged to fit the rods so they won't wobble, but worn out pillar heads will be a problem as you want the screws to be a tight fit in the pillars for reliability.

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

Reply To Message | Avail. Forums | Flat View

Newer Topic | Older Topic

Topics