The new Black Diamond Oval Screwgate combines a time-tested symmetrical shape with a modern snag-free keylock design and a locking screwgate to create a versatile biner that's worthy of any rack.. . ?. . . Snag-free keylock design for easy clipping and unclipping. Locking screwgate. Uniform shape prevents shifting. Large carrying capacity. Proven symmetrical design. Weight:??62 g (2.19 oz). Closed Gate Strength:??23 kN (5170 lbf). Open Gate Strength:??7 kN (1573 lbf). Minor Axis Strength:??9 kN (2023 lbf). Gate Opening:??18 mm (0.71 in). Imported.