These hand knob tightening screws are designed to provide a simple, secure, and durable fastening solution for a wide range of equipment and accessories. Each package includes two replacement tightening knobs, allowing users to select the correct option depending on their equipment setup and intended usage.

The knobs feature a comfortable plum blossom head made from high-quality reinforced plastic, offering a secure grip and smooth handling during adjustment. The ergonomic design allows for quick installation and tightening by hand without the need for additional tools. The smooth finish also helps prevent slipping or scratching during use.

The threaded screw portion is manufactured from durable carbon steel with a zinc-plated finish for improved strength, corrosion resistance, and long-term reliability. The deep, precision-cut threads provide smooth rotation and strong fastening performance while maintaining stability during repeated use.

 Please note that metric M-thread sizes are not compatible with other equipments not PersonalHour. Before purchasing, users are encouraged to confirm compatibility with their equipment and select the correct screw option based on their application requirements.

These replacement tightening knobs are commonly used for fitness equipment, rack brackets, speaker stands, woodworking fixtures, mechanical equipment, and other daily fastening applications where secure and adjustable tightening is needed.