… Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter-pins, washers (including …
Explanatory notes
… 73.18 ‑ Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter‑pins, washers (including … whereas screws for metal are more usually screwed into a hole tapped in the material to be fastened and are therefore … threaded throughout). Nuts are metal pieces designed to hold the corresponding bolts in place. They are usually …