1、The product is lightweight and convenient, compact and beautiful, small in size, suitable for multiple scenes 2、Screw on type design, easy for you to install, surface with nice finish for comfortable grip 3、The thread rod is deep, not easy to slip, and the tightening effect is good, very practical 4、Made of excellent phenolic plastic material, possess strong corrosion resistance, durable, waterproof and light weight 5、Straight thread head locking handle is equisite and non‑slip, very useful in your daily life 10 x Knob Bolt Item Type: Clamping KnobMaterial: Phenolic plasticModel：M5x20x15Screw Length (L): Approx.15mm / 0.6inColour: BlackQuantity: 10PcsUsage Scenarios: Used in machinery and equipment, instrumentation, food and industrial equipment.Handle Outer Diameter (D): Approx. 20mm / 0.8in