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Black Diamond Rocklock Screwgate Carabiner

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Our Price: $11.95

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Designed specifically for belay and rappel situations, the Black Diamond Rocklock Screwgate is Black Diamond's largest keylock locking carabiner. Made oversize in order to help with ease of use and be munter hitch compatible, the Rocklock offers numerous features that are designed to help while belaying or rappelling. A square hinge end is designed to hold the belay knot in place and eliminate load shifting and the spine is slightly curved to maximize gate opening. Rocklocks are easy to use with many belaying and rappelling techniques and can be operated with one hand. It's extra size comes in handy especially when wearing gloves. If you're putting together a belay system for the gym or the crag, the versatility of the Rocklock Twistlock Carabiner makes it a great choice for either.

Key Features

  • Square hinge end holds belay loop securely in place
  • Keylock nose prevents snagging
  • Screwgate sleeve
  • Slightly curved spine maximizes gate opening
  • One-hand operable
  • Type H or HMS connector. For dynamic belaying using a Munter Hitch or belay device.


Weight 85 g (3 oz)
Closed Gate Strength 24 kN (5395 lbf)
Open Gate Strength 8 kN (1798 lbf)
Minor Axis Strength 8 kN (1798 lbf)
Gate Opening 24 mm (0.95 in)