Mad Rock XL Steel Twist Lock Carabiner Gold 870559005333. Exceeds NFPA requirements. Specifications for Mad Rock XL Steel Screw Lock Carabiner: Manufacturer: Mad Rock Type: Twist Lock Color: Gold Last Chance: Yes Features of Mad Rock XL Steel Screw Lock Carabiner Material: Steel Weight: 255 g Major Axis: 50 kN Minor Axis: 8 kN Open Gate: 15 kN Gate Clearance: 25 mm Length: 125 mm Package Contents: Mad Rock XL Steel Screw Lock Carabiner Mad Rock 870559005333: XL Steel Twist Lock Carabiner Gold