|Name:||Clog (twistlock D) (straight knurling 90 deg throw)|
|Sleeve Rotation:||90° (unlocked) | 90° (maximum)|
|Nose:||notch & pin|
|Dimensions:||Length: 110.74 mm|
Width: 62.78 mm
Depth (basket end): 9.7 mm
Gate Opening: 19.86 mm
|Strength Ratings:||2800 KG|
|Other Markings:||Impressed: CLOG | BRITAIN 2800KG|
|Summary:||early twistlock from originator of the twistlock|
|Description & Commentary:|
This design is one of the earlier twistlock carabiners.
Clog produced the first twistlock carabiners, with advertisments appearing in 1983. These ads show drawings with a sleeve design using diagonal knurling and a 90 degree throw, whereas this example has a 90 degree throw but straight knurling.
As with most modern autolockers, the hinge pin includes a lug to guide the locking mechanism. Notably, this is much larger diameter than found these days.