Designed for rescue work and other difficult conditions, the Petzl M73 SL Vulcan Screw Lock Carabiner is made of high quality steel that can support heavy loads. Its wide gate and superior strength allows its use as a multiple anchor.
The SL Vulcan sports a screw lock gate that is intended for use when you do not need to periodically open and close the gate. As the lock is manually operated, it is not prone to jamming the system if foreign objects find their way into it, unlike automatic locks.
It uses Petzl’s Keylock system that does away with hooks at the interface of the gate and body. This totally eliminates the possibility of ropes, harnesses, anchors, and other gear from getting snagged on the ‘biner.
The gate opening measures 32 mm. With the gate of the carabiner closed, it has a major axis strength of 40 kiloNewtons. This is substantially higher when compared to most other carabiners. With the gate opened, this is reduced to 11 kiloNewtons. This rating, however, is still comparable to that of its competitors. The minor axis, on the other hand, has a strength of 11 kiloNewtons. Its weight of 290 g is far heavier than other ‘biners but this is the price it has to pay for its superior strength.
It is available in either gold or black.