"These hooks are very strong, made from 0.3 inch diameter steel rod with two attachment holes 5.5mm in diameter (18mm apart) capable of taking a No. 12 screw. They look and work great in a garage/workshop/shed but for more domestic situations they are a bit crudely finished.
Main negative was that of 10 hooks (2 packs of 5 each) only 5 were square-on, meaning that the hook end lined-up with the attachment holes when looked at straight-on. The other 5 were bent and had to be straightened with a vice and pry bar to make them true. Because of this I've scored them 4 Stars for 'Reliability' as the only category appropriate."