Bolt: mechanical parts, with nuts cylindrical threaded fasteners.
By the head and the screw (with external thread of the cylinder)
composed of two parts Kind of fasteners, need to cooperate with
nut, used for fastening the two parts with hole.
Hebei mountain fasteners co., LTD of integrity, strength and
product quality obtain industry acceptance. Welcome friends from
all walks of life come to visit, guidance and business contact To
talk about.
