Schaller's second-generation strap locks. A one-piece hardened steel button screws into the guitar, the lock on the strap clicks over it and stays there until you pull back the release ball, and a knurled Lock-Wheel holds the lock to the strap and can be done up by hand or with a tool.
SPECIFICATIONS
Hardware
Finish: chrome
Size: M
Strap button: one-piece hardened steel, 12 mm diameter
Screw: 4.0 x 20 mm wood thread
Locking bolt: stainless steel
Strap thickness: up to 6 mm
Strap hole: 10 mm
Installation: 3 mm (1/8") Allen key
Accessories
In the pack: 2 strap buttons, 2 locks, 2 Lock-Wheels, felt washers




