Uxcell 20 Pack Knurled Clamping Knobs, 1/4"-20 UNC 0.59" Threaded Stud Clamping Knobs Hand Tightening Thumb Screw Knob for Lawn Mower Umbrella Base Clamps Replacement Machinery

Description:
Good Material: These thumb screws are made of plastic and iron, making it robust and durable. It boasts excellent rust and corrosion resistance, ensuring its durability and stability, and reliable operation in various environments. The smooth surface and clear threads are designed for long-term use.
Feature: This clamping screw knob features a knurled surface for a better grip, making it easy to tighten or loosen. The smooth surface and flowing lines make it more comfortable to hold. This knob is a great replacement for your damaged or old knobs.
Easy to Use: Easy to Use: Our locknuts feature a threaded design and a knurled handle for easy rotation, allowing for tool-free tightening by hand. Tightening, installation, and removal are simple and convenient, bringing convenience to your projects. However, do not over-tighten the knob, as this may damage or strip the threads on the mating parts.
Wide Application: These thumbscrew handles fasteners are widely used in applications requiring frequent adjustment or tightening, such as industrial equipment in the machinery industry, including lathes, drilling machines, sawing machines, machine tools, 3D printer platforms, and instrumentation. They can also be used for fastening everyday cabinets, toolboxes, furniture, etc.