... Grade A, Class 2, except for those provisions required of the contractor. For additional information, see page 361. Capacities 1/3 thru 55 ... , such as ABS, DNV, Lloyds, or other certification. Charged for proof testing and certification available when requested at the time ... Ultimate Strength is 6 times the Working Load Limit. For Working Load Limit reduction due to side loading applications. screw ...