How do I select the length of the spacer???

Size name is the length of the spacers.

If I would buy the m8, 20mm,eould it be possible to swap out 2 for the 10mm?

Unfortunately not. those are prepacked items.

Hi I need 2 x spacers to convert a 20mm hole to internal diameter 8mm on a wheel, what should I order pls

You will need a spacers with OD 20mm, our M8 Spacers have 15.5mm. You can get M10 with OD 20mm but the hole is 10.5mm.

Are these made of solid plastic? I want to use them as part of a foot arrangement. Thanks

They have a hole to allow a screw through them length wise but they are pretty solid - you can't bend or squash them easily.

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M4 x 15mm Black Nylon Spacers Standoff Washers, Pack of 12 – Cylindrical Insulating Plastic Bushing for PCB, Electronics, Motherboard, Robotics & DIY

Product ID: 175041943

Details

Exterior finish
Black
Fastener size
M3 M4 M5 M6 M8
Material
Nylon
Outside diameter
7 Millimetres
Washer type
Standoff

⚡Non-conductive nylon

🔩Pack of 12 durable spacers

🛠️Precision M4 x 15mm size

€ 12.68

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🖤 Elevate your electronics game with spacers that mean business!

UNIVERSAL COMPATIBILITY - Works seamlessly with all standard M4 screws, nuts, and threaded rods for effortless assembly.
VERSATILE DIY ESSENTIAL - Perfect for PCB, robotics, 3D printers, and all your high-tech projects demanding reliable insulation.
PRECISION ENGINEERING FIT - Exact 4.3mm bore and 15mm length for flawless M4 bolt compatibility and consistent spacing.
DURABILITY MEETS LIGHTWEIGHT - Rustproof, corrosion-resistant, and UV-stable for long-lasting performance indoors or outdoors.
ELECTRICAL ISOLATION MASTERY - Prevent costly short circuits with premium non-conductive black nylon spacers.

This pack of 12 black nylon M4 x 15mm spacers offers precision-engineered, non-conductive insulation for PCBs, robotics, and electronics. Crafted from durable, corrosion-resistant polyamide, they ensure safe, lightweight, and UV-stable mounting solutions compatible with all standard M4 fasteners.

Specifications

ASIN	B07QWYYRCQ
Best Sellers Rank	4,364 in DIY & Tools ( See Top 100 in DIY & Tools ) 7 in Spacers
Brand Name	Universal Hardware
Colour	Black
Compatible Groove Diameter	4.2 Millimeters
Country Of Origin	Netherlands
Customer Reviews	4.5 4.5 out of 5 stars (58)
Exterior Finish	Black
Fastener Size	M3, M4, M5, M6, M8, M10
Fastener Type	Flat Washer
Finish Types	matte
Item Diameter	8 Millimetres
Item Thickness	3 Millimetres
Manufacturer	Fasteners Store
Manufacturer Part Number	Black Nylon Spacers
Material Type	Nylon
Number Of Items	12
Number of Pieces	12
Outside Diameter	7 Millimetres
Screw Head Style	Round
Set Name	M4 x 15mm Black Nylon Spacers Standoff Washers, Pack of 12
Size	15mm
Thread Size	M3, M4, M5, M6, M8
Unit Count	12.0 count
Washer Application	PCB mounting, electronics, robotics
Washer Compatibility	bolts, screws, threaded rod
Washer Type	Standoff

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 12.68

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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2 months ago

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