1. First, remove the sludge on the surface of broken screws and broken ends and bludgeon the center of the section to death. Then, install a 6-8mm diameter drill bit with an electric drill to drill the center bludgeon hole. After the hole is drilled, remove the small bit and replace it with a 16 mm

1Kazari sealKazari seal: This is a forced seal, with external thread Kazari seal, internal thread Kazari seal and improved Kazari seal in three forms. The external thread kazari seal is the most used. Its gasket is a soft metal gasket with a triangular cross-section, made of copper or aluminum. The

Fastener screws need to be inspected before or after production before they can be formally put into use. Therefore, in order to get better use effect of fastener screws, we must be careful and careful when carrying out these inspections. According to the summary experience, China Standard Parts Net

Countersunk head screw is also known as flat machine screw, flat head screw, its head is a 90 degree cone, the mounting hole surface on the connector is also processed with a 90 degree cone socket, so as to ensure that the screw head and connector surface parallel, for the surface can allow a little

Now the use of stainless steel for manufacturing fasteners has been very popular, but for stainless steel fasteners, there are four major performance points, which are described as follows:1. High temperature resistance of stainless steel fasteners. Because of the hardness of stainless steel itself

Countersunk head screws are used in the need to install, the surface of the parts can't be raised, and there were two kinds of thickness of the fastening parts, so-called thick, that is to say the fastening parts thickness is greater than the countersunk head screw head thickness, bolt tightening, t