Here's the earliest discussion about strap locks I could find, from 2004:
http://club.alembic.com/index.php?topic=4415 Another from 2005:
http://club.alembic.com/index.php?topic=4317 The most recent ongoing discussion:
http://club.alembic.com/index.php?topic=438 Please understand that I'm only providing links to those threads in the interest of furthering the discussion, not as a comment on this thread itself. In other words; carry on.
I've noticed that two solutions nobody has mentioned in any of those threads is bread bag clips. I've had them on my G&L since the 80s. Or you can pop a couple of bucks for the Joe Satriani signature ... um, bread bag clips (what else do you call 'em?):
http://straptight.com/store/products/ Another approach that nobody has mentioned is using inserts/helicoils for the strap button screw. I've used threaded inserts (like every screw on an Alembic, except strap buttons), most often for bolting necks, especially Teles. We got them from Grainger's, but they only sell wholesale.
Now you can buy WBS Neck Lock Systems (I love how everything is a system nowadays. In fact, I just got out of ... Sleep system and had a cup of coffee from our ... uh, brewing system ...)
Looks like that about covers the extremes: Joe Satriani signature bread bag clips (or the free version ) or threaded inserts, which provide their own issues, like the softness of the brass (you can also use stainless steel inserts, if you know where to look:
http://tinyurl.com/qdhf567 )
Or slap a big washer on either side of your strap tab and bolt that baby on with a hex-head lag bolt, like Stanley Clarke:
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From
http://www.alembic.com/info/fc_dragonsbreath.html You're not imagining things, there are no strap pins or locks or holders of any sort on the bass. Stanley has always screwed his strap directly to the bass, and doesn't need any facility to remove the strap. A large woodscrew and washer do the trick, and are his ultimate straplock.
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JEFF Beck, Eric Clapton, Tony Levin, Duane Allman and countless other musicians bolt their straps directly to their guitars.
The general rule of thumb is that if something has to be taken apart, use inserts (again, they're all over our Alembics), otherwise stick with wood screws. YMMV.
I use Schallers, but I've noticed a problem that nobody else has mentioned: the tall knob on the straplock can get damaged or bent in a tight-fitting guitar case. That happened to my Jazz Bass, but I didn't do anything about it. The lock is still on there - bent - but it still works dandy.
(Message edited by Ed_zeppelin on November 03, 2015)