20Pcs M4x30 Male Thread Thumb Screw Hand Tightening Screw Black Plastic Handle Knob Clamping Screw

• [Material]: The screw is made of premium carbon steel, the surface of the screw is zinc plated, anti-corrosion, anti-rust and anti-oxidation; the hand knob is made of high quality plastic, smooth and burr-free, sturdy and durable.
• [Size]: The head diameter is 14mm, thread diameter is 4mm and thread length is 30mm, more detail parameters please refer to the picture.
• [Easy to Use]: Round handle knob tightening screw is easy to install, you just need to grip the handle and turn it by your hand, install it easily and quickly.
• [Application]: Widely used for hardware, furniture, mechanical equipment, electrical and other industrial equipment.
• [Package]: 20 Pcs Hand Tightening Knob Screw

[Material]: The screw is made of premium carbon steel, the surface of the screw is zinc plated, anti-corrosion, anti-rust and anti-oxidation; the hand knob is made of high quality plastic, smooth and burr-free, sturdy and durable.[Size]: The head diameter is 14mm, thread diameter is 4mm and thread length is 30mm, more detail parameters please refer to the picture.[Easy to Use]: Round handle knob tightening screw is easy to install, you just need to grip the handle and turn it by your hand, install it easily and quickly.[Application]: Widely used for hardware, furniture, mechanical equipment, electrical and other industrial equipment.