Everything you need to know about .strandberg* string locks

We always encourage our players to get thoroughly acquainted with their tools of performance to make their guitar-playing life as inspiring and comfortable as possible. Our string locks are designed for strength and ease of use, but deeper knowledge about their composition is crucial to utilize their full potential, perform setup or troubleshoot problematic situations.

The parts found in our string locks

  1. String lock shim - Stainless Steel
  2. String lock housing - Aircraft-grade Aluminum
  3. String lock mounting screw - Steel
  4. Metal washer 5 mm - Steel
  5. String lock locking screw - Stainless steel (3mm hex)

String lock versions

There are two versions of our string locks designed to ensure the correct breaking angle for every string over the zero-fret. Version 1 was used for all strings on Korean- and US-built production guitars where the lock attachment and fret size was different compared to our current lineup. It has the string attachment hole placed higher up and a detachable string lock pin. Version 2 was introduced during 2018, has the string attachment hole placed further down, and a permanent lock mounting pin. The version 2 string lock is found in position 1-6 on all current models, while version 1 is used in the positions 7 and 8. This configuration applies to the factory specifications of current production guitars and other combinations of locks may be the right choice if using heavier gauge strings. 

The protective shim

Current .strandberg model guitars all come equipped with a shim placed between the string locks and the headstock for protection against damage if overtightening the locks. The shim can be added to earlier Indonesian instruments without modification, but the hole pattern does not correspond to our US- or Korean-made guitars. Anything is possible with modifications, but this is not something that we offer to do. The shim is not necessary when using the locks in the intended way, but was added for reasons of safety.

Frequently asked questions (+ answers)

  • What do I do if a string lock is coming off the headstock? As with most moving parts, the lock mounting screw can sometimes come loose as a result of the constant pull. If this happens, please remove the locking screw, the string, and the protective washer inside the lock after which the mounting screw is tightened again. If new material is needed to ensure proper grip for the screw, this can be added in the form of small pieces of wood together with glue placed inside the mounting hole. This is true for other wood-mounted parts like strap buttons as well.
  • What do I do if I can't get a specific string through the mounting hole? This obstruction is commonly caused by the protective steel washer placed inside the locks and usually only on the wound strings. The washer is only beneficial for the plain strings, so please remove the washer to see if enough space is cleared. Obstruction of the string can also be caused by a lock mounting screw sticking up, so please make sure that these screws are properly tightened. If nothing seems to work, get in touch with us through support@strandbergguitars.com and we'll gladly help you out.
  • I want to use heavier gauge strings and can't get them through the locks! As stated earlier, we use different versions of our locks depending on the situation. If the gauges you intend to use on your 6-string guitar are normally associated with 7- and 8-string instruments, you may need to exchange one or more locks to ensure perfect functionality.
  • Is there any point in exchanging locks on my older .strandberg* guitar to bring it up to date? No, as a matter of fact, this may even decrease the level of performance. The different versions of our hardware was specifically designed for the building specs at the time and there is little point in exchanging parts that still perform in their intended way. If the need to exchange locks arise for whatever reason, locks from different generations do fit in the same mounting holes without modification.
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