| Name: | Clog (twistlock D) (straight knurling 90 deg throw) |
| Category: | twist lock |
| Locking Type: | full-auto |
| Locks: | single |
| Unlock Style: | twist |
| Sleeve Rotation: | 90° (unlocked) | 90° (maximum) |
| Shape: | asymmetric D |
| Material: | aluminum |
| Profile: | flat |
| Nose: | notch & pin |
| Nose Guard: | none |
| Rivets: | domed |
| Gate Shield: | none |
| Weight: | 81.7 g |
| 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. See also: Twistlock D with straight knurling and 120 degree throw. 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. |
