Various Kinds of Plastic Thumb Screw Knob Bolts Butterfly Shape Plastic Nut. Tool-Free Hand Tightening: Designed for convenient and quick installation without the need for additional tools. Customizable Color Options: Available in black with colorable options to meet specific branding or aesthetic needs. Diverse Material Selection: Plastic heads made of PP, ABS, or PA; metal parts include zinc-plated iron or SUS304 stainless steel. Comprehensive Size Range: Offers metric (M4-M12) and imperial (10#-2') sizes with various thread lengths from 10mm to 60mm. Flexible Customization Service: Supports full customization, minor customization, and flexible customization from samples or designs. Strict Quality Inspection: 100% finished product inspection covering both visual appearance and functional performance. Fast Standard Delivery: Estimated delivery time is 7 days for standard orders, ensuring quick turnaround. Manufacturer Direct Supply: Direct from factory with OEM/ODM services available for tailored production needs.