1. having no screw threads
Usage: technical
2. lacking threads or fibers

Examples

• The threadless stem on the bicycle fork provides a cleaner look.
• Modern bike headsets often use threadless designs for easier adjustment.
• The threadless bolt requires a different installation method.
• This threadless fabric has a smooth, uniform texture.
• The threadless connection eliminates the need for screwing parts together.
• Threadless headset systems are now standard on most quality bikes.