Descriptions:Multi-Size Convenience - The package contains a variety of different sizes and sufficient quantity to meet your various usage needs.Material - Made of brass material, high hardness and durable. Provides good mechanical properties with increased corrosion and heat resistance.Feature - The embedding nut has a guide so there is no need for a counterbore or countersink. Smooth surface, firm and uniform, easy to install.Advantage - Due to the embossing process on the outer diameter of the insert, it forms certain friction and bites force with the brass insert after forming, which can be fixed on the inside so that it will not fall off easily. Has a certain torsion and tension.
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