A passenger wears a face mask on an almost empty Swiss Air flight from Hamburg, Germany to Zurich, Switzerland, on March 22, 2020, in Hamburg, Germany. Airlines worldwide have had to cut back fligh...
A screw refers to a screw (foreign name: Screw). It is a tool that utilizes the physical and mathematical principles of the circular rotation and frictional force of an object to gradually tighten ...
Bolts: mechanical parts, cylindrical threaded fasteners with nuts. A type of fastener consisting of a head and a screw (cylindrical body with external thread) needs to cooperate with a nut to faste...
PITTSBURGH, March 3, 2020 /PRNewswire/ — “I grew tired of people on the job trying to determine if anchor bolts were plumb by eyesight alone,” said an inventor from Temple City, C...
Fasteners are a type of mechanical parts that are used for fastening connections and are widely used. Fasteners are widely used in industries including energy, electronics, electrical appliances, m...