M3 M3.5 Socket Button Dome Head Screws-Aluminum Alloy Anodizing Hex Allen Bolts 

Material:Aluminum Alloy
Surface:Anodized
Packing:Foam bag/carton
Size:M3 M3.5(support customization)
Product Features 
Wear-resistant and high corrosion-resistant
No rust and oxidation under humid environment

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