(1PCS) 304 Stainless Steel External Expansion Screws M20x200mm.

✅Material: Expansion screw, for 304 Stainless Steel corrosion-resistant, rust-proof, high strength, no deformation； ✅ Features: Screw surface is smooth, uniform force, not easy to slip, not slippery, more convenient to use; ✅Easy to install :You can use the automatic knocking screw on the fixed material, and put it into the corresponding object to tighten it quickly; ✅Used: used widely in the home and office appliance, electric ,communication equipment, ship assembly and other machinery industry. ✅ If you have any questions about the product, please feel free to contact us, and we will do our best to help you.