Please help me ring bolt, help me ring nut, help me ring screw

There are a variety of standard specifications of the suspension ring nut, in the lower part of the nut is with a thread, can be drilled according to its different specifications, the use of screw for fixation.
The development of industry also drives the production innovation and development of some mechanical parts. The reference standard of the lifting ring nut is different, and its applicable scope is different. The applicable scope of the nut of the lifting ring whose thread specification is m8-m100 *6 according to the standard is hoisting machinery, appliances and other general handling equipment.