1.6mm ID x 2.9mm OD Nylon Insulating Bush | Ø6.3mm Flange

This 1.6mm ID x 2.9mm OD Nylon Insulating Bush is designed to electrically isolate screws, bolts and other fasteners from conductive materials. Its 6.3mm diameter top hat flange offers increased surface coverage compared with smaller flange options, making it ideal for applications where greater insulation or load distribution is required.  Just one of many components from our comprehensive spacers and washers range, designed to insuate, isolate and reduce friction between moving elements. 

Also referred to as a shoulder washer, top hat bush, screw insulator, insulation ring or nylon insulating washer, this versatile component is manufactured from high-quality Natural Polyamide (Nylon 6), combining excellent electrical insulation with outstanding mechanical performance.

The precision-moulded design helps protect delicate components from damage while preventing unwanted electrical contact and reducing heat transfer through metal fixings.

Suitable for use in electrical equipment, electronics, automotive assemblies, industrial machinery and many other engineering applications.

Key Features

• Manufactured from premium Natural Nylon 6 (Polyamide)
• 1.6mm internal diameter
• 2.9mm outside diameter
• 6.3mm flange diameter
• 3mm overall height
• 1mm flange thickness
• Electrically non-conductive
• Excellent thermal stability
• Resistant to vibration and wear
• Lightweight yet durable
• Corrosion resistant
• Suitable for electrical and mechanical assemblies

Technical Specifications

• Alternative Names: Shoulder Washer, Top Hat Bush, Screw Insulator, Insulation Ring
• Material: Natural Polyamide (Nylon 6)
• Internal Diameter (ID): 1.6mm
• Outside Diameter (OD): 2.9mm
• Flange Diameter: 6.3mm
• Overall Height: 3mm
• Flange Thickness: 1mm
• Colour: Natural
• Electrical Properties: Non-conductive
• Thermal Properties: High thermostability
• Mechanical Properties: Wear resistant, vibration resistant

Typical Applications

This Nylon Insulating Bush is commonly used in:

• Electrical enclosures
• Printed circuit board (PCB) assemblies
• Switchgear and control panels
• Automotive electrical systems
• Wiring and cable management
• Battery systems
• Consumer electronics
• Telecommunications equipment
• Industrial manufacturing
• General engineering projects

Material Information

Manufactured from Natural Nylon 6, this insulating bush delivers an excellent balance of strength, flexibility and electrical insulation. Nylon 6 is widely used across engineering industries due to its ability to withstand repeated movement, vibration and mechanical stress while maintaining dimensional stability.

Its non-conductive properties make it an ideal choice for insulating electrical components, while its lightweight construction offers a corrosion-free alternative to metal spacers and bushes.

Available Colours

Standard colours and finishes are available for many products within our range. If you require a specific colour or a custom solution for your application, please contact our sales team to discuss your requirements.

Why Choose Our Nylon Insulating Bushes?

Our Nylon Insulating Bushes are manufactured to high-quality standards, providing dependable electrical insulation and mechanical protection across a wide range of industries. Available in multiple sizes and flange diameters, they're ideal for OEM manufacturers, maintenance engineers and trade professionals seeking reliable, long-lasting performance.

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• Material Data Sheet