The classic buckle
- coarse locking pitch
- difficult unlocking when tensioned
- no sidewards coupling
The spring forced buckle
- only used to couple flexible straps
- no sidewards coupling
The selflocking connector (right side)
-
difficult releasing when tensioned
- two times inserting is needed to connect
- no sidewards coupling
The coupling head of a releasable tiewrap
- difficult unlocking when tensioned
- much friction during tensioning
- low strength in many cases
- no sidewards coupling
