Female Threaded Handle Clamp Grip Knobs Hexagon Star Black Plastic Thumb Nuts. Customizable Color: Available in Black with colorable options to meet specific requirements. Customizable Size: Size can be customized according to customer specifications. Diverse Material Options: Constructed from PP, ABS, PA, Iron plated with white zinc, or SUS304. Tool-Free Hand Tightening: Designed for convenient and quick installation without tools. OEM and ODM Services: Full customization, minor customization, and design-based options available. Wide Thread Range: Offers metric and imperial threads from M4 to M12 and 10# to 2'. Fast Delivery: Estimated delivery time is 7 days for standard orders. Strict Quality Control: 100% visual and functional inspection performed before packing.