| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Headless screw | Mechanical Engineering | Set screw having no projecting head. Its top is either slotted or provided with a socket. Source: European Union. (references) | |
| Slotted headless screw | Mechanical Engineering | A screw whose top (head, or headless end) is slotted to receive a screw driver. It is much more often a screw used without nut than a bolt. Source: European Union. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
