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Difference twistlock vs screwlock carabiners

The main difference between a twistlock and a screwlock carabiner is the way the lock works. A screwlock carabiner has a screw mechanism that you manually turn and tighten to open and close the lock. A twistlock carabiner, on the other hand, has an automatic locking system. You have to turn the lock to open it, but as soon as you release it, it closes and locks automatically.

More detailed explanation:

Screwlock carabiner:

  • Manual locking: The screw thread must be opened and closed manually.
  • Visual indicator: Often there is a red indicator that shows when the carabiner is not locked.
  • Suitable for harsh environments: They are less susceptible to blockages from dirt or ice than automatic systems.

Twistlock carabiner:

  • Automatic locking: The lock closes and locks automatically when the gate is released.
  • Easy to open: Requires a twisting motion and a pulling motion to open.
  • Suitable for frequent use: Often used for connecting a belay device or at the end of a lanyard.

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