[Multipurpose Use] - These thumb clamping screws are good for various applications requiring quick adjustments, such as woodworking, machinery, equipment assembly, lathes, drill presses, sawing machines, packaging, printing equipment, computer monitors, light fixtures, and patio umbrella brackets, etc
[Durable Thumb Screw Knobs] - Constructed with zinc plated carbon steel threaded studs for durability and wear resistance, these good plastic male thread knurled clamping knobs provide a smooth surface and comfortable grip
[Advantages] - This hand stud knob with a thermoset plastic knob can securely connect the parts and is easy to install. Round knurled knobs offer ease of grip and turning by hand, providing leverage and comfort for effortless tightening or loosening
[Attention] - Installation and removal can be done without the need for tools. Avoid over-tightening the knob to prevent potential damage or stripping of threads in the mating assembly