4 Pcs Male Threading Rotating Knob, M6 17mm Adjustable Thumb Lever Screw, Rotating Knob with Single Wing, Red Aluminum Alloy

【MATERIAL】 The screw handle is made of high quality aluminum alloy, the screw is made of iron, surface with electro-galvanized treatment, more durable and anti-rust. 【DESIGN】 It is spring loaded, and can be pulled out and turned to a more user friendly position after being tightened. Single wing design allows you to easily tighten the thumbscrew without the use of any tools. Wide use in photographic equipment. 【Attention】Please take care to pick the size you want. 【WHAT YOU GET】 4 x M6*17 Red adjustable thumb lever screw. 【EASY TO USE】 Knob Screw with single wing is easy to install or remove without any tools, convenivent and effortless. Widely used in furniture decoration, photographic equipment, electronic equipment and so on. 【DESIGN】 Adjustable knob screw is spring loaded which can be pulled out or turned to a more friendly position after being tightened. 【MATERIAL】 Made of high quality aluminum alloy, durable and convenient to use.