Buttons for S-Lock Classic

Buttons for S-Lock Classic

From €12.30*

Prices incl. VAT plus shipping costs

available, delivery time appr. 1-3 days Germany, 3-5 days Europe, 5-7 days other countries

Product Configurator

Choose surface color:
Please first select your product details above for adding it to your cart.
Please set the "Comfort functions" to activate the wishlist!

Schaller Buttons S-Lock Classic (without screws) as accessories for S-Locks


With Schaller Security Locks, we developed and patented a completely new product in 1981, probably the most secure connection between guitar and strap.
In contrast to our regular S-Lock range, where the strap pin and fastening screw are made of steel in one piece, the S-Lock Classic is the perforated strap pin sleeve, which is fastened via a separate fastening wood screw (not included in scope of delivery).
Both versions offer Schaller's proven quality for securely fastening the strap to instruments such as guitars or basses.

Scope of delivery


  • 2 x S-Lock Classic strap buttons (without fastening screws)
  • made of hardest steel for maximum wear resistance and safety
  • including high quality felt washers to protect the instrument
  • Dimensions strap button same as original security locks: height 10 mm, diameter outside 12 mm, diameter max. for screw head 6.8 mm; diameter hole for screw 3.8 mm

These are easy to install using a suitable wood screw (not included in scope of delivery).

Compatibility: Security Locks and S-Locks

Schaller S-Locks are compatible with all existing Schaller Security Locks as follows:

  • strap button old SecLock/S-Lock Classic + lock new S-Lock (without silent feature!)
  • strap button new S-Lock + lock SecLock (only limited, we do not recommend)

» Please always use our new Lock for S-Locks with Lock-Wheels for S-Locks on your strap, then you will always be compatible with all strap buttons and at the same time you will always use all the advantages of our new Lock-Wheel.
» Please always make sure that the lock is engaged in the strap button, the lock is attached to the belt in such a way that the strap button is secured in the U-shape of the lock and that the instrument does not rotate.

Assembly of S-Lock Classic strap buttons

  • If there is no hole drilled in the bodywood, choose a suitable drill diameter depending on the type of wood and the suitable wood screw (according to the screw thread inside diameter).
  • If the hole is too large, make it smaller (e.g. with wood glue and a suitable wooden dowel) and drill again.
  • If necessary, countersink separately in the area of the outer lacquer layer (around the drill hole) to prevent the lacquer from flaking off when the suitable wood screw is screwed in.
  • The strap button should sit completely on the wood; if necessary, first flatten the wood.
  • Carefully screw the strap button with felt washer and suitable fastening screw into the existing drill hole. If the strap button is too tight, unscrew it again and gradually drill out the hole in the wood.
  • Tighten the strap pin "hand-tight" until it reaches the body of the instrument. Do not continue to use force. The wood may break, the varnish may flake off and the strap button may break off.

Please note:

» Please check the secure fit of the belt pin in the wood regularly and tighten the screw if necessary or reduce or close an expanded hole and re-drill it as described.
» Do not change the factory dimensions of the S-Locks Classic strap buttons  (a change to the purchased item is not a material defect - see Schaller GTC). Any changes to the original product dimensions, e.g. widening of diameters by drilling, will inevitably result in damage to the component and thus the loss of the protective function of the S-Lock.

(Please use the configurator. You will then receive the desired product in that selected color.)

Technical drawing (without engagement)

PDF-file download follows