Product Description Triple locking action karabiner certified to EN362B. The THK006 is and HMS or pear shaped karabiner, with a large top section for knots and hitches (the term HMS comes from the German word Halbmastwurfsicherung, for a half clove hitch) and a smaller well rounded basket for self-centralising. Being slightly asymmetrical on the longitudinal axis, the THK006 has a good strength to weight ratio and fits comfortably in the hand. The triple locking gate is both safe, yet easily operated, and will not snag on ropes thanks to the key-lock nose design, and the gate opens to a full 23mm. Each karabiner is both batch and serial numbered for tracking the necessary routine inspections.