Plastic Hand Tighten Nuts Handle Thread Quadrilateral Black Thumb Nuts Knob Manual Clamping Nuts. Customizable Color: Available in Black with colorable options to meet specific branding needs. Customizable Size: Size can be customized according to specific requirements. Diverse Material Options: Constructed from PP, ABS, PA, Iron plated with white zinc, or SUS304. OEM and ODM Services: Full customization, minor customization, and flexible customization available. Tool-Free Operation: Hand-tightening design allows for convenient and quick installation without tools. Wide Thread Range: Available in Metric (M4-M12) and Imperial (10#-2') thread sizes. Fast Delivery: Estimated delivery time is within 7 days for standard orders. Strict Quality Control: 100% visual and function inspection performed on finished products.