KNOB SCREW

A KNOB SCREW is a fastening component that combines an easy-to-grip knob head with a metal threaded shaft. It may also be referred to as a thumb screw. Users can tighten, loosen, or adjust its position by hand without tools, making it suitable for equipment that requires frequent assembly, quick fastening, or manual adjustment.

Product Name: KNOB SCREW / Thumb Screw
Knob Shapes: Round, star-shaped, wing-shaped, knurled, or other specified designs
Thread Configurations: Male-thread screw, female-thread knob, or through-hole type
Thread Specifications: Metric, imperial, coarse thread, fine thread, or other special thread profiles
Primary Dimensions: Thread diameter, thread pitch, shaft length, knob outside diameter, and knob height
Screw End Types: Flat end, pointed end, ball end, nylon tip, or other specified forms
Knob Materials: Plastic, phenolic resin, aluminum alloy, stainless steel, or brass
Screw Materials: Carbon steel, stainless steel, brass, or other specified materials
Surface Treatments: Zinc plating, nickel plating, black oxide, passivation, anodizing, or other specified finishes
Processing Methods: Injection molding, overmolding, turning, and thread rolling
Production Options: Standard specifications or custom production based on drawings
Inspection Items: Dimensions, threads, assembly retention, torque, and appearance

Tool-Free Operation

The knob head provides sufficient gripping area for hand tightening and loosening, improving efficiency during equipment adjustment, assembly, and disassembly.

Suitable for Frequent Position Adjustment

A KNOB SCREW can be used to quickly secure guide rails, brackets, covers, jigs, and fixtures, making it suitable for mechanisms that require repeated positioning or setting changes.

Multiple Knob Shapes Available

Round, star-shaped, wing-shaped, or knurled knob designs can be selected according to available operating space and required hand force, providing both slip resistance and convenient operation.

Customizable Screw End Functions

The threaded shaft can be manufactured with a flat end, ball end, nylon tip, or other end configuration to meet clamping, positioning, or workpiece surface protection requirements.

Wide Range of Applications

KNOB SCREWS are commonly used in machinery, jigs and fixtures, instruments, photographic equipment, fitness equipment, medical devices, and automation systems.

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