| Name: | Unmarked (D screwlock) |
| Category: | screw lock |
| Locking Type: | manual |
| Locks: | screw |
| Unlock Style: | gate stopped - thread runout |
| Sleeve Rotation: | 720° (unlocked) | 990° (maximum) |
| Shape: | D |
| Material: | aluminum |
| Profile: | round |
| Nose: | notch & pin |
| Nose Guard: | none |
| Rivets: | pin: proud |
| Gate Shield: | none |
| Weight: | 73 g |
| Dimensions: | Length: 114 mm Width: 54.7 mm Depth (basket end): 11.3 mm Gate Opening: 14 mm |
| Other Markings: | (no markings) |
| Summary: | early style screwlocker from an unknown brand |
| Description & Commentary: | Unmarked, but appears identical to the Eiger Locking D (which was likely whitelabel production). |