ASPA AdaptorThread adapters should only be used as a reducer for already existing threads to allow the attachment of high tensile RUD lifting points. The thread adapters ae marked with the inside and outside thread diameters. Attention: Never use DIN 580 or standard type eyebolts in combination with RUD thread adapters! The WLL of the adapter is matched to the WLL of the RUD lifting point. The thread adapter provides spanner flats for a wrench, a goove for a hook