Flat Plastic Thumb Knob Screw (Nut)

Low-Profile Thumb Screws｜Curved Surface Design × Ergonomic Fit × Sleek Performance manufacturer. In space-limited assemblies where fasteners must remain discreet and unobtrusive, flat plastic thumb knob screws provide a low-profile solution without sacrificing usability. The curved top surface improves finger contact and control, allowing comfortable manual tightening even with minimal thickness—making this type of low-profile thumb knob screw suitable for compact equipment and visually sensitive product designs. UJEN is a high-quality Flat Plastic Thumb 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.

Flat knob screws are available in UJEN's unique macaroon color

Low-Profile Thumb Screws｜Curved Surface Design × Ergonomic Fit × Sleek Performance

In space-limited assemblies where fasteners must remain discreet and unobtrusive, flat plastic thumb knob screws provide a low-profile solution without sacrificing usability. The curved top surface improves finger contact and control, allowing comfortable manual tightening even with minimal thickness—making this type of low-profile thumb knob screw suitable for compact equipment and visually sensitive product designs.

UJEN supplies flat plastic thumb knob screws for AV equipment, consumer electronics, and precision devices, supporting multiple sizes and OEM/ODM customization through Taiwan-based manufacturing.

Flat Plastic Thumb Knob Screw (Nut) Overview

Flat plastic thumb knob screws are designed for applications that require a compact fastening solution with minimal protrusion. The low-profile form reduces interference with surrounding components while maintaining smooth, hand-operated adjustment.

Low-Profile & Curved Surface Design

Unlike traditional flat metal knobs, the curved surface geometry improves ergonomics by increasing contact area for the fingers despite reduced height.

Reduced overall height for space-saving installation
Curved top surface improves grip and turning comfort
Clean and modern appearance for visible fastening points

Material & Appearance Options

Plastic construction suitable for lightweight assemblies
Optional color selection to match product aesthetics
Consistent surface finish for visually exposed components

Size & Compatibility

Available in multiple thread sizes and diameters
Compatible with common metric and inch thread standards
Suitable for low-clearance fastening locations

Typical Applications

AV equipment mounts and projection systems
Compact or foldable device enclosures
Consumer electronics and home appliances
Precision instruments requiring discreet fastening
Display stands or minimalist structural designs

When clamping knob screw options vary in thread type, size, length, external dimensions, materials, and surface finishing, manual browsing may take time. For faster selection, use Advanced Search below or the shortcut at the top right to filter by application needs and dimensional requirements.

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Flat Plastic Thumb Knob Screw (Nut)

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