Schaller S-Locks Classic set

Strap lock buttons without fastening screws.

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.

The S-Locks Lock

By pulling the ball with locking pin away from the lock, you release the safety catch of the Schaller S-Locks attached to the belt as shown in the illustration. The belt lock is released and can be pulled off the side of the button (pin) attached to the instrument.

Please read the following user guide before selecting S-Locks in our shop or installing them:

Concept and features

S-Locks: 3 x S for

• Safe
• Silent &
• Schaller strap locks

Concept and features

In the development of the new revolutionary S-Locks we have combined 3 parts to perfection:

• unique hardened steel strap buttons
• S-Locks suitable for different belt thickness with ergonomic operation
• and a patented locking nut - Lock-Wheel - with triple security architecture.

Schaller S-Lock Classic set consisting of:  

2 x S-Lock Classic strap buttons (without fastening screws)

• made of the hardest steel for maximum wear resistance and safety
• including high-quality felt washers to protect the instrument
• Dimensions strap buttons same as original security locks: Height: 10mm; Diameter outside: 12mm; 
  Diameter max. for screw head: 6.8mm; Diameter hole for screw: 3.8mm
• Standard diameter 12mm

These are easy to install using a suitable wood screw (not included in scope of delivery).
Detailed assembly instructions can be found in this product description below.

2 x Locks for S-Locks

• extended thread length for holding straps of up to 6 mm thickness,
• newly designed slanted locking bolt made of stainless steel for minimum wear and thus maximum safety
• new design pull-up ball for best haptics
• suitable for a standard hole in the belt of 10 mm
• Receptacle for Schaller strap buttons 12mm

2 x S-Lock-Wheels

• Lock-Wheel with special patent thread ensures a secure hold. It can be tightened safely by hand without tools.
• The 2-hole mount (suitable for 2 mm Allen key or screwdriver) allows a firmer tightening torque of the Lock-Wheel with maximum hold.
• Undetachable hold due to grub screw with tapered cap and slot 2.5 x 5 mm made of stainless steel. Simply unscrew the set screw again to unscrew the Lock-Wheel; the thread remains functional and cuts itself "free" again through the Lock-Wheel.

Compatibility between Schaller old Security Locks and current S-Locks

a.) S-Locks are compatible with all existing Schaller Security Locks like this:

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

Please always use our new S-Lock lock with Lock-Wheel 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.

b.) One strap for several instruments