Factory Direct Sale M5-M10 Plum Hand Tighten Nuts Star Mechanical Blue Thumb Knob Nut. 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 Operation: Hand-tightening design allows for quick and convenient installation without tools. OEM and ODM Services: Full customization, minor customization, and flexible customization services available. Fast Delivery: Estimated delivery time is 7 days for standard orders. Comprehensive Inspection: 100% visual and functional inspection performed on finished products. Multiple Thread Standards: Available in Metric (M4-M12) and Imperial (10#-2') thread sizes.