
Safety Plastic Clamping Knob Screw (Nut)
Safety Lock Thumb Screws (Knob Nuts)|Child-Safe Design × Push-to-Turn Mechanism × Equipment Protection
In applications where accidental loosening or unauthorized access must be prevented, safety plastic clamping knob screws provide an added layer of protection through controlled operation. The push-to-turn mechanism remains free-spinning in its idle state and only engages when downward pressure is applied, reducing the risk of unintended adjustment while maintaining tool-free usability for authorized users.
UJEN supplies safety plastic clamping knob screws for equipment requiring controlled access and secure adjustment, supporting multiple sizes and OEM/ODM customization through Taiwan-based manufacturing.
Safety Plastic Clamping Knob Screw (Nut) Overview
Safety plastic clamping knob screws are designed to prevent unintended operation by introducing a push-to-turn engagement mechanism. In the idle state, the knob rotates freely without tightening or loosening, helping reduce accidental or unauthorized adjustment.
Push-to-Turn Safety Mechanism
The fastening function is activated only when the user applies downward pressure while turning the knob, ensuring deliberate operation.
- Free-spinning rotation in idle state
- Downward pressure required to engage tightening or release
- Reduces unintended loosening during vibration or casual contact
Safety & Protection Benefits
- Helps prevent access by children or untrained users
- Improves protection for high-speed or high-temperature equipment
- Supports controlled access to sensitive or hazardous components
Tool-Free & Intuitive Operation
- Simple push-and-turn motion for authorized users
- No tools required for installation or adjustment
- Maintains usability while adding an extra safety layer
Configuration Options
- Available in multiple thread sizes and dimensions
- Plastic materials suitable for lightweight and corrosion-sensitive environments
- Supports OEM/ODM customization for specific safety requirements
Typical Applications
- Home appliances with child-safety requirements
- Protective covers on high-speed or high-heat machinery
- Outdoor equipment with restricted access panels
- Educational or exhibit devices requiring tamper resistance
- Medical and rehabilitation equipment needing secure adjustment
When clamping knob screw options vary in thread type, size, length, external dimensions, materials, and surface finishing, manual browsing may take time. For faster selection, use Advanced Search below or the shortcut at the top right to filter by application needs and dimensional requirements.
Safety Plastic Clamping Knob Screw (Nut) | Enhance Your Equipment with Durable Knob Screws for Easy Adjustment"
Based in Taiwan since 1994, UJEN DEVELOPMENT CO., LTD. expertise in manufacturing high-quality Safety Plastic Clamping Knob Screw (Nut), hand screws, knob screws, adjustable handles, grip knobs, and indexing plungers. Their commitment to customization and precision ensures each component, from hand screws to indexing plungers, meets rigorous standards. This dedication positions UJEN as a leader in supplying durable and reliable industrial components to global markets.
UJEN Development Co., Ltd. is a leading manufacturer of precision-engineered hand screws, knob screws, plastic knobs, adjustable handles, and indexing plungers for a variety of industrial needs. Our 45-year legacy, combined with ISO 9001:2015 certification, underscores our commitment to quality, innovation, and customer satisfaction. Specializing in custom solutions, we excel in professional moldmaking, enhancing equipment functionality across industries.
UJEN has been offering customers high-quality hand screws for industrial machinery since 1994, both with advanced technology and 47 years of experiences, UJEN ensures each customer's demands are met.

