Definition of screw-bolt in English:

screw-bolt

noun

  • A straight rod or pin with an external spiral ridge and a blunt end onto which a nut may be threaded to bolt things together.

verb

  • with object To fasten with a screw-bolt. Chiefly in pass.

Origin

Late 17th century; earliest use found in Wren Society. From screw + bolt<br>late 18th century; earliest use found in William Herschel (1738–1822), musician and astronomer. From screw-bolt.

Pronunciation

screw-bolt

/ˈskruːbəʊlt/