High-strength, light-weight alloy components are used in critical areas of function ensuring reliability in the most challenging of circumstances and on the largest of limbs. The high strength hook and buckle interface was designed for security, strength, and ease of application. The design allows for rapid routing of the tourniquet strap while eliminating need for re-threading the webbing through a buckle. By eliminating the requirement to re-route the webbing the tourniquet is easier to use when operating under stress and reduces application time, both of which can result in reduced levels of blood loss and better quality patient care. It easily slides over an arm or leg. It unclips at the buckle to fit around hard-to-reach areas, such as a trapped limb.