| Name: | DMM Mamba (Screwgate) |
| Category: | screw lock |
| Locking Type: | manual |
| Locks: | screw |
| Unlock Style: | gate stopped - gate stop |
| Sleeve Rotation: | 990° (unlocked) | 1485° (maximum) |
| Shape: | asymmetric D |
| Material: | aluminum |
| Profile: | hollow-trap |
| Nose: | notch & pin |
| Nose Guard: | semi |
| Rivets: | domed |
| Gate Shield: | full |
| Anti Crossload: | captive eye(s) |
| Weight: | 57 g |
| Dimensions: | Length: 109.94 mm Width: 59.5 mm Depth (basket end): 8.2 mm Gate Opening: 17.34 mm |
| Strength Ratings: |  23 kn |  10 kn |
| Other Markings: | Forged: DMM WALES | (ratings) Stamped: DAJ |
| Batch Marking Location: | captive-eye-right |
| Collection Criteria: | ★ Manufacturing, Engineering, or Design ★ Historically Interesting or Iconic |
| Summary: | first hot-forged carabiner & captive eye for webbing |
| Description & Commentary: | Introduced in 1992, DMM Mamba body was the first hot-forged aluminum alloy carabiner, a process which moves more material than when bent or cold-forging carabiner bodies. This helps designers maximize strength and minimize weight - common in today's world of high-performance climbnig carabiners. Although first released in non-locking versions, DMM produced this screwlocker variant later on. The Mamba body sports a deep, pointed basket with a rope guide groove, a bowed spine and captive eye designed for the webbing of a quickdraw. All these features aid in clipping the carabiner into a bolt or the rope into a carabiner when sport climbing - something certainly valued by rock climbers while leading a difficult pitch! The nose has a narrow, full-length guard - better than nothing, but the gate and rivets still extend significantly beyond the guard. At the time of the Mamba's release (early 90's), a nose guard would have been relatively new feature. The rear of the gate is mostly shielded, but the captive eye should practically eliminate any crossloading and accompanying rope shredding. |