Expansion screw Material: steel, carbon steel
Head style: countersunk
Origin: China
Brand Name: OEM/Custom
Model: OEM/Custom
Advantages: connection and fastening; diversity; widely used
Customization: accept customization after receiving your drawings or samples
Packing: PE bag + carton + pallet or according to your requirements
Surface treatment: galvanized/customized
Thread: Umbrella threads Barb threads Expansion screw 

If the display is not the type you want, please contact me, we have more than 2000 kinds, please feel free to quote for you.