Knurled Thumb Nuts

Size

Knurled thumb nuts come in a wide variety of size specifications.
Common nominal diameters range from M3 to M16.
Small-sized knurled thumb nuts such as M3 and M4 are often used in small electronic devices and precision instruments.
Larger sizes like M12 and M16 are generally applied in fields such as mechanical equipment and automotive parts.
Their thickness, outer diameter, and other dimensions vary according to different usage scenarios and load-bearing requirements.

Are You an OEM Manufacturer?

Yes

Material of Knurled Thumb Nuts

Metallic materials: Commonly used ones include carbon steel, which has a low cost and high strength, meeting the general mechanical fastening requirements. Stainless steel materials have good corrosion resistance and rust prevention properties, and are suitable for harsh environments such as humid, acidic and alkaline conditions, for example, in chemical equipment and food processing equipment.
Non-metallic materials: Such as nylon and polyoxymethylene. They have characteristics like insulation, shock absorption and light weight, and are often used in electronic devices and instruments to avoid potential electrostatic interference or damage to precision components that may be caused by metal nuts.

Electroplating: Common types include galvanizing, nickel plating, and chromium plating. Galvanizing can improve the corrosion resistance of the nuts at a relatively low cost. Nickel plating and chromium plating can make the surface of the nuts smoother and more beautiful, while enhancing their wear resistance and corrosion resistance. These are often used on occasions with high requirements for appearance and performance.
Blackening treatment: A black oxide film is formed on the surface of the nuts, which has a certain anti-rust ability and can also enhance the aesthetics of the nuts. It is often used in some mechanical equipment with special appearance requirements or products with strong decorative features.

Electronics and Electrical Appliances: Small-sized knurled thumb nuts are used for the assembly of electronic device casings, the fixation of circuit boards, etc., making maintenance and debugging convenient.
Mechanical Equipment: They are frequently used in the connection of various mechanical components and adjustment mechanisms, making it easy for operators to manually tighten and loosen them.
Furniture Industry: In the assembly structure of furniture, such as the connection of tables and chairs and the installation of furniture doors, etc., they are applied, facilitating users to assemble and disassemble by themselves.
Automotive Manufacturing: They are used for the fixation of automotive interior parts and the connection of some components in the engine compartment, etc., making it convenient for maintenance personnel to conduct daily maintenance and repair.
Instruments and Meters: They are quite common in the fixation of the casings and panels of various instruments and meters. They can not only ensure the fastening effect but also make it convenient for operators to operate.