0_51-2.jpg

Top 100 Scientific Inventions That Changed The World -P2. Screw.

28-02-2019

(Wcsas.world) A screw is a type of fastener, sometimes similar to a bolt (see Differentiation between bolt and screw below), typically made of metal, and characterized by a helical ridge, known as a male thread (external thread) or just thread.

Page 1 of 2 pages (11 items)12>Last