12mm ID x 16mm OD x 20mm Top Hat Nylon Bush

Our 12mm I/D x 16mm O/D Bush with a Ø20mm Top Hat in Nylon 66 is just one of many components from our comprehensive spacers and washers range, designed to reduce friction between moving elements.  Generally manufactured from Nylon or HDPE, they are used to distribute load, prevent wear, isolate, limit noise, provide a pivot point, prevent sliding, dampen shocks or vibration and improve performance in engineering and mechanical assemblies.

Also referred to as a flanged bush, shoulder washer, headed bush, stepped bushing, screw insulator, insulation sleeve, isolation collar, insulation bearing or top hat washer, the smooth hard wearing plastic composition, will provide a robust solution for multiple application.

The integral flange or top hat acts as a spacer or stop, helping protect surrounding components from contact with the fixing screw, fastener, shafts or struts.

Technical Specifications

• Material: Natural Polyamide (Nylon 66)
• Internal Diameter (ID): 12mm
• Outside Diameter (OD): 16mm
• Flange Diameter: 20mm
• Overall Height: 10mm
• Flange Thickness: 2mm
• Material Colour: Natural
• Electrical Properties: Non-conductive / Electrical insulating
• Thermal Properties: High thermostability
• Resistance Properties: Vibration resistant, wear resistant
• Manufacturing Material: Nylon 66 Plastic
• Alternative Names: Shoulder Washer, Screw Insulator, Insulation Ring, Top Hat Bush, Slide Bearing, Bushing

Material Information

Manufactured from Polyamide / Nylon 66, this insulating bush combines excellent mechanical strength with reliable electrical insulation properties.  A material data sheet can be found within our Technical Data tab but Nylon is widely used in engineering applications because it offers:

• Good impact resistance
• Low friction characteristics
• Strong dimensional stability
• Resistance to wear and abrasion
• Ability to withstand repeated movement and vibration
• Reliable performance across a wide temperature range

This makes the bush suitable for demanding environments where standard plastic washers may not provide sufficient durability.

Colour Options

With these being manufactured from Natural Nylon, you can dye this component any colour you want using widely available commercial products for dyeing nylon.

Typical Product Applications

• Automotive 
• Electrical Insulation
• Friction Reduction
• Cable and wiring installations
• Spacing and Alignment
• Automotive electrical systems
• Control panels and switchgear
• Electronic device manufacturing
• Mechanical assemblies requiring isolation
• Screw and fastener insulation

Key Benefits of Nylon Bushes

• Electrical insulation: Non-conductive Nylon 6 material helps prevent current transfer between components.
• Heat resistant: Excellent thermal stability for applications exposed to elevated temperatures.
• High vibration resistance: Durable construction helps maintain performance in moving or high-vibration environments.
• Lightweight and strong: Nylon provides excellent strength-to-weight performance.
• Protects components: Prevents metal screws and fasteners from damaging sensitive surfaces.
• Corrosion resistant: Unlike metal alternatives, nylon will not rust or corrode.
• Versatile applications: Suitable for electrical, mechanical, and industrial assemblies.

Why Choose Our Nylon Insulating Bushes?

We supply high-quality components manufactured for dependable performance across electrical, mechanical, and industrial applications. If you require a single insulating bush for repair work or larger quantities for production, our team can help you select the correct size, material, and specification for your application.

   Why not submit your own review?

Submitted by Rebecca Blackwell (24/04/2024)
seat swivel bush

Quality
Accurate Description
Performance/Suitability
Value for money
Overall Score	5.0 / 5

Submitted by Bill McNair (13/04/2024)
As described and fast delivery.

Quality
Accurate Description
Performance/Suitability
Value for money
Overall Score	5.0 / 5

Submitted by Mr Patrick Donoghue (1/02/2021)
Happy to have found these.

Quality
Accurate Description
Performance/Suitability
Value for money
Overall Score	5.0 / 5

Submitted by lisa lane (15/03/2017)
quick despatch and delivery

Quality
Accurate Description
Performance/Suitability
Value for money
Overall Score	5.0 / 5

Submitted by Mr Roger Jenkins (14/01/2016)
Wanted for CNC project - tolerances were good to enable smooth motion along transit rails. Bit pricey compared to other makes but accuracy was more important.

Quality
Accurate Description
Performance/Suitability
Value for money
Overall Score	4.8 / 5

Frequently asked questions about this item are shown below. Do you have a question? Submit FAQ

Q: hi is there a drawing for this part? if not how long is the bush?

A: pretty much every one of our products should have a Blue 'View Drawing' button on the product page and I've just checked this one and it is definitely there. So click that and this will give you a dimensional drawing but again, as with most of our products - you can request free of charge samples online if you physically wanted to get hold of one!

• Material Data Sheet