Thumb screws and nuts are designed with a similar function to hand screws which are created with the intention of being installed or removed without the use of power or hand tools,it is easy to fix for family
The plastic head thumb screw combines a durable steel threaded body with a molded plastic knob, allowing quick and tool-free fastening.
Material: Steel screw + Plastic head
Surface: Zinc plated
Application: Tool-free fastening and adjustment in machinery, furniture, and equipment
Steel part is formed through cold heading or CNC machining Machines. Then precision rolled or milled threaded.
Next, the screw go to zinc plating workshope, which provides corrosion resistance and durability for long-term use.
The thrid part ,the steel screw is combined with the plastic knob through injection molding. During this process, high-strength engineering plastics such as PA or PP are molded directly onto the metal shaft, forming a strong mechanical bond and ensuring ergonomic grip.
Finally, each screw is subjected to dimensional inspection and functional testing to verify thread accuracy, surface quality, and fastening performance. , certified quality ISO 9001 system, we ensure every thumb screw meets international standards and customer-specific requirements.
