Multi-color Plastic Clamping Knob Screw (Nut)

Dual-Color Plastic Fastening Knob with steel Screws｜World-First Design × Multi-Color Variations × Visual Function Coding manufacturer. Dual-Color Plastic Fastening Knob Screws—also known as multi-color knob screws—are UJEN’s globally patented innovation, combining visual appeal with functional clarity. Each knob features a center color disc and an outer color ring on the top face, both available in 7 standard colors or custom color requests, and 4 unique surface styles: Concave, Flat, Convex, and Dotted. UJEN is a high-quality Multi-color Plastic Clamping Knob Screw (Nut), Hand screw, hand nut, knob screw, thumb knob, plastic knob, adjustable handle, grip knob, indexing plunger manufacturer from Taiwan since 1994. UJEN Development Co., Ltd., with over 45 years of expertise, specializes in manufacturing precision hand screws, knob screws, plastic knobs, adjustable handles, and indexing plungers. As an ISO 9001:2015 certified company, we offer custom solutions and professional mold-making capabilities to enhance product functionality and brand value. Our commitment to quality and innovation ensures we meet the specific needs of our customers in various industries. UJEN is a leading manufacturer of high-quality hand screws in the screw parts industry. With over 40 years of expertise in plastic injection mold development, we have specialized in crafting precision rotary knobs and handles. We offer technical consulting services and customized design solutions to provide full-service from design to production.

Multi-color plastic knob with steel screw

Dual-Color Plastic Fastening Knob with steel Screws｜World-First Design × Multi-Color Variations × Visual Function Coding

Dual-Color Plastic Fastening Knob Screws—also known as multi-color knob screws—are UJEN’s globally patented innovation, combining visual appeal with functional clarity. Each knob features a center color disc and an outer color ring on the top face, both available in 7 standard colors or custom color requests, and 4 unique surface styles: Concave, Flat, Convex, and Dotted.

This configuration of Multi-color plastic knob with steel screw enables up to 196 standard combinations (7 discs × 7 rings × 4 shapes), offering outstanding flexibility in design and functionality. The system allows users to create color-based logic, brand-aligned appearances, or intuitive function identification in their product design—while also enhancing grip and visual quality.

Key Features

World-First Dual-Color Knob Design: Center disc + outer ring in contrasting or matching colors, with layered surface detailing.
196 Standard Combinations: Mix and match 7 colors × 4 textures × 2 components = 196 visually distinctive styles.
Function-Based Color Coding: Use color and shape to distinguish motion types, safety levels, or mechanical actions.
Brand-Aligned Customization: Match your corporate identity or product theme with precise color selection.
Ergonomic Surface Styles: Choose from four tactile ring designs for a better user experience.
OEM/ODM Ready: Fully customizable options for shape, size, and colors—including private tooling.

Typical Applications

Fitness equipment knobs differentiated by function
Color-coded fasteners on medical beds or modular carts
Visual and tactile control knobs for precision instruments
Stylish fastening solutions for consumer electronics or furniture
Operator panels requiring high visibility and intuitive touchpoints

Please refer to the appearance, color, and size options below to create the knob style that best fits your product needs.
For custom colors, dimensions, or branded designs, feel free to contact the UJEN team for expert advice and comprehensive manufacturing support.

Multi-color Plastic Clamping Knob Screw (Nut)

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