We all know that the screw head of the hex socket bolt is round on the outside and concave in the middle. This structure actually has obvious advantages.
Choosing the right specifications of hexagonal bolts is like finding the right piece for a puzzle. You need to consider several aspects. Below, Mr. Zhu from Chuanggu Combination Screws will tell you how to choose.
Flat washers are also called flat washers. They are mainly stamped out of iron plates. They are generally round or square in shape with a hole in the middle.
Jiaxing Qunbang Hardware Co., Ltd. participated in the Stuttgart exhibition in Germany to take a complete success.
US President Donald Trump has announced a 25 per cent tariff on all steel and aluminium imports into the US
