【M8 Knurled Thread Tightening Knob Star Handle】M8 Black Thread Tightening Knob Star Shaped Plastic Manual Knob Knob Handle for Machine Tools. 【Handle Nut High quality star handle】The handles are made of high quality plastic to ensure a long service life. 【Unique design】 Plum flower handle design allows you to grip more comfortably, the internal thread is clear and complete and the force is applied evenly. Ergonomic design and anti-slip effect, without scratching your hands. 【Easy assembly】M8 tapping：Universally suitable and can be used for most types of machine tools.The aluminum head clamping knob handle star is very suitable for manual adjustment in mechanical engineering. Widely used in mechanical appliances, furniture decoration, machine tools, fitness equipment and industrial appliances. 【Easy to use】The star nut tightening knob is threaded for easy screwing into the mechanism. Hold the bolt thread to prevent it from loosening easily. It can be used directly by screwing it into