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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M6 x 15mm Black Nylon Spacers Standoff Washers, Pack of 12 – Cylindrical Insulating Plastic Bushing for PCB, Electronics, Motherboard, Robotics & DIY

M6 x 15mm Black Nylon Spacers Standoff Washers, Pack of 12 – Cylindrical Insulating Plastic Bushing for PCB, Electronics, Motherboard, Robotics & DIY

Product ID: 234451617

Details

Exterior finish
Black
Fastener size
M6 / 6 mm
Material
Nylon
Outside diameter
10 Millimetres
Washer type
Standoff

🔩Pack of 12 for bulk projects

⚙️M6 x 15mm precision fit

🛡️Non-conductive & corrosion-proof

¥2181

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🖤 Elevate your electronics with precision and protection!

VERSATILE MULTI PACK - 12 spacers per pack to power through multiple projects or prototypes—never run out mid-build again.
DURABLE LIGHTWEIGHT - Rustproof, UV-stable, and built to last without adding bulk—engineered for both indoor and outdoor tech setups.
UNIVERSAL COMPATIBILITY - Works flawlessly with all standard M6 screws, nuts, and threaded rods—your go-to spacer for any DIY or professional PCB assembly.
PRECISION ENGINEERED FIT - Exact 6.4mm bore for seamless M6 bolt compatibility—no guesswork, just perfect alignment every time.
ULTIMATE ELECTRICAL INSULATION - Crafted from black nylon (PA6) to prevent shorts, corrosion, and interference—ideal for sensitive electronics and robotics.

This pack of 12 M6 x 15mm black nylon spacers offers precision cylindrical standoffs made from durable, non-conductive polyamide PA6. Designed for PCB mounting, robotics, and electronics, they provide reliable insulation and corrosion resistance while fitting all standard M6 bolts. Perfect for professionals and DIYers seeking a lightweight, UV-stable solution to prevent electrical shorts and ensure clean, secure assemblies.

Specifications

ASIN	B07QV27SJ7
Best Sellers Rank	2,629 in DIY & Tools ( See Top 100 in DIY & Tools ) 6 in Spacers
Brand Name	Universal Hardware
Colour	Black
Compatible Groove Diameter	6 Millimeters
Country Of Origin	Netherlands
Customer Reviews	4.5 4.5 out of 5 stars (158)
Exterior Finish	Black
Fastener Size	M6 / 6 mm
Fastener Type	Flat Washer
Item Diameter	3.2 Millimetres
Item Thickness	15 Millimetres
Manufacturer	Fasteners Store
Manufacturer Part Number	Black Nylon Spacers
Material Type	Nylon
Number Of Items	12
Number of Pieces	12
Outside Diameter	10 Millimetres
Screw Head Style	Round
Set Name	M6 x 15mm Black Nylon Spacers Standoff Washers
Size	15mm
Thread Size	M3, M4, M5, M6, M8, M10
Unit Count	12.0 count
Washer Application	PCB mounting, electronics, robotics
Washer Compatibility	M6 bolts, machine screws
Washer Type	Standoff Washer

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