Commonly Used Sizes: Thread size: M10 x 13mm, commonly used sizes are suitable for many types of mechanical equipment, enough for daily use and replacement. High-quality material: Clamping handles, screw knobs, handles are made of high-quality plastic and metal, which have a smooth and wear-resistant surface, clean and precise thread, durability and long service life. Ergonomic design: The rotating handle is designed with a female thread handle, providing a comfortable grip, easy to screw in and prevent slipping. They are great accessories to replace your old or broken knob handles. Easy to install: When you want to use these knob handles, you just need to cut the threaded rods to the length you need, and then screw them into threaded rods to use them. Compact internal thread knobs very easy to install, no other tools are needed. Usage range: The internal thread nut tightening knob is used for secure holding and fixing of control panels on assemblies and machines, can also be used for