【Easy to Use】: The star head knob tightening screw is easy to install, you just need to grip the star head and turn it by your hand, without any other tools, install it easily and quickly. 【Material】: The screw is made of carbon steel, high strength and hardness; galvanized surface, anti-corrosion, anti-rust and anti-oxidation, suitable for outdoor or indoor use; the yellow star head knob is made of high quality plastic, smooth and burr-free, sturdy and durable.
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