grub screw

短语

词形变化

grub screws 复数 grub screws

释义与例句

n.
  1. 1.

    A headless set screw.

词源

From a fancied resemblance to a grub (insect larva), both in appearance and in the way that it can go down a hole as if down into a burrow.

来源：wiktionary