The newly patented Secure Lock nipple of Sapim is a locking mechanism that prevents nipples from untightening.  The advantages of this easy locking system are:

• Can be used on truing machine
• No loose function while truing the wheel
• Available on most current Sapim nipples
• Easy to recognize

Highly precise and accurate machines have specifically been developed to produce this type of locking system.  They ensure stable and well defined deformation on the thread.

Note - Price mentioned is for a single spoke