A set-screw is a small screw designed to secure one object to another. Synonyms for set-screw include locking screw, grub screw, and pressure screw. Locking screws are also used to secure one object to another, but they have a different type of thread and are typically used for heavier loads. Grub screws are similar to set-screws but they have a flat tip that allows them to apply pressure to the object they secure. Pressure screws are similar to grub screws and are also used for applying pressure. Synonyms for set-screw are useful for finding alternative ways to secure objects, or for finding different types of screws to use in specific situations.