Product name: Aluminum alloy Cup Head Washer 
Product Size:
                         Thread inner diameter=2mm-6mm
The inner diameter of the nut can be used with M6 washer and M6 screw
Product material: aluminum alloy 
Product color: colorful
Product category: model special nut
Product head type: hexagonal head

Adapt to the scene: construction industry, hardware accessories, furniture industry, shipbuilding industry, medical equipment, factory industry, electronics industry, etc.