---
product_id: 173306288
title: "M4 x 20mm Black Nylon Spacers Standoff Washers, Pack of 12 – Cylindrical Insulating Plastic Bushing for PCB, Electronics, Motherboard, Robotics & DIY"
brand: "universal hardware"
price: "$12.34"
currency: USD
in_stock: true
reviews_count: 11
category: "Universal Hardware"
url: https://www.desertcart.us/products/173306288-m4-x-20mm-black-nylon-spacers-standoff-washers-pack-12
store_origin: US
region: United States of America
---

# 7mm outer diameter for exact spacing M4 x 20mm precision fit Non-conductive & corrosion-proof M4 x 20mm Black Nylon Spacers Standoff Washers, Pack of 12 – Cylindrical Insulating Plastic Bushing for PCB, Electronics, Motherboard, Robotics & DIY

**Brand:** universal hardware
**Price:** $12.34
**Availability:** ✅ In Stock

## Summary

> 🖤 Elevate your electronics with precision spacers that keep you ahead of the curve!

## Quick Answers

- **What is this?** M4 x 20mm Black Nylon Spacers Standoff Washers, Pack of 12 – Cylindrical Insulating Plastic Bushing for PCB, Electronics, Motherboard, Robotics & DIY by universal hardware
- **How much does it cost?** $12.34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/173306288-m4-x-20mm-black-nylon-spacers-standoff-washers-pack-12)

## Best For

- universal hardware enthusiasts

## Why This Product

- Trusted universal hardware brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable & Lightweight Design:** Polyamide PA6 ensures rust-free, UV-stable, and heat-resistant performance.
- • **Pack of 12 for Bulk Projects:** Get consistent, repeatable gaps with a ready-to-use set for professional builds.
- • **Ultimate Electrical Insulation:** Black nylon material prevents shorts and protects sensitive electronics.
- • **Versatile Application Powerhouse:** Ideal for PCBs, robotics, drones, and DIY projects demanding reliable spacing.
- • **Precision Engineered for Perfect Fit:** M4 inner bore fits all standard M4 bolts & screws seamlessly.

## Overview

These M4 x 20mm black nylon spacers are high-quality, non-conductive standoff washers designed for precise 20mm spacing in electronics and robotics assemblies. Made from durable, corrosion-resistant polyamide, they ensure electrical insulation and UV stability, compatible with all standard M4 bolts. Sold in packs of 12, they are essential for professional-grade PCB mounting and DIY projects requiring reliable, lightweight, and heat-resistant spacers.

## Description

Product Description High-Strength Black Nylon Spacers – Heat-Resistant, Lightweight, and Corrosion-Resistant for Automotive, Electronics, and Home Improvement Black nylon spacers for screws and bolts Durable black nylon spacers for electronics Non-conductive black nylon spacers for circuit boards Heat-resistant black nylon spacers for automotive use Black nylon spacer kit for DIY projects Black nylon spacers for hardware and fasteners Crafted from high-quality nylon, these washers offer excellent resistance to wear and tear, manufactured from PE (polyethylene) for improved strength, rigidity and form.

Review: Quality product - Great quality product, item as described and ideal for the job
Review: Strong, versatile. - These can be used for a multitude of things, but I used them to extent some stair rods. They are strong, with the correct diameter with a good finish.

## Features

- BLACK NYLON (POLYAMIDE) – NON-CONDUCTIVE, LIGHTWEIGHT & DURABLE Manufactured from high-quality black nylon (polyamide PA6) — electrically non-conductive, naturally non-magnetic, and immune to rust or corrosion. Ideal for electronic assemblies, PCB mounting, and any application where metal spacers would conduct electricity, short circuits, or scratch sensitive components. Black colouring also provides good UV stability for outdoor or sunlight-exposed installations.
- CYLINDRICAL STANDOFF DESIGN – 4.3mm INNER BORE, 7mm OUTER DIAMETER A precision-moulded cylindrical "through-hole" spacer with 4.3mm inner bore and 7mm outer diameter. The screw passes straight through and the spacer creates a precise, repeatable gap between two surfaces — typically used to lift a PCB or component off a metal chassis, separate two layers of material, or provide insulation at a fixing point. No internal thread — the screw threads into a nut, tapped hole, or PEM insert at the other end.
- M4 x 20mm – PACK OF 12 BLACK NYLON SPACERS Each pack contains 12 individual M4 x 20mm black nylon standoff spacers. The 4.3mm inner bore accommodates standard M4 bolts, machine screws, and threaded rod. The 20mm length creates a precise gap of exactly 20mm between the mating surfaces. Cleanly moulded with no flash or burrs — ready for direct assembly use.
- ESSENTIAL FOR PCB, ELECTRONICS & ROBOTICS PROJECTS Black nylon standoffs are the standard mounting hardware for printed circuit boards, motherboards, Raspberry Pi, Arduino, drone PCBs, robotics controllers, 3D printer electronics, and any project requiring a non-conductive electrical separation between board and chassis. The insulating properties prevent short circuits, electrical interference, and damage to sensitive components during installation and operation.
- UNIVERSAL M4 FIT – COMPATIBLE WITH ALL STANDARD M4 BOLTS & SCREWS The 4.3mm inner bore is universally compatible with all M4 metric bolts, machine screws, button head screws, and threaded rod across all major brands. Combine multiple spacers in series for precise custom heights, or use with nylon nuts and washers for a fully non-conductive assembly. Available in M3, M4, M5, M6, M8, and M10 across lengths from 3mm to 30mm — browse our store for the complete nylon spacer range.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07QW1P5FS |
| Best Sellers Rank | 4,254 in DIY & Tools ( See Top 100 in DIY & Tools ) 9 in Spacers |
| Brand Name | Universal Hardware |
| Colour | Black |
| Country Of Origin | Netherlands |
| Customer Reviews | 4.5 out of 5 stars 563 Reviews |
| Exterior Finish | Black |
| Exterior finish | Black |
| Fastener Size | M3, M4, M5, M6, M8, M10 |
| Fastener Type | Flat Washer |
| Fastener size | M3, M4, M5, M6, M8, M10 |
| Item Diameter | 7 Millimetres |
| Item Thickness | 3 Millimetres |
| Item thickness | 3 Millimetres |
| Manufacturer | Fasteners Store |
| Manufacturer Part Number | Black Nylon Spacers |
| Material | Nylon |
| Material Type | Nylon |
| Number Of Items | 12 |
| Number of Pieces | 12 |
| Outside Diameter | 8 Millimetres |
| Outside diameter | 8 Millimetres |
| Screw Head Style | Round |
| Set Name | M4 x 20mm Black Nylon Spacers Standoff Washers |
| Size | 20mm |
| Thread Size | M4 |
| Unit Count | 12.0 count |
| Washer Application | electronics, robotics |
| Washer Compatibility | M4 bolts, M4 machine screws, M4 threaded rod |
| Washer Type | Standoff |
| Washer type | Standoff |

## Product Details

- **Exterior finish:** Black
- **Fastener size:** M3, M4, M5, M6, M8, M10
- **Material:** Nylon
- **Outside diameter:** 8 Millimetres
- **Washer type:** Standoff

## Images

![M4 x 20mm Black Nylon Spacers Standoff Washers, Pack of 12 – Cylindrical Insulating Plastic Bushing for PCB, Electronics, Motherboard, Robotics & DIY - Image 1](https://m.media-amazon.com/images/I/71ltyjNghcL.jpg)
![M4 x 20mm Black Nylon Spacers Standoff Washers, Pack of 12 – Cylindrical Insulating Plastic Bushing for PCB, Electronics, Motherboard, Robotics & DIY - Image 2](https://m.media-amazon.com/images/I/71Sf2sxwsdL.jpg)
![M4 x 20mm Black Nylon Spacers Standoff Washers, Pack of 12 – Cylindrical Insulating Plastic Bushing for PCB, Electronics, Motherboard, Robotics & DIY - Image 3](https://m.media-amazon.com/images/I/515woxVWhAL.jpg)
![M4 x 20mm Black Nylon Spacers Standoff Washers, Pack of 12 – Cylindrical Insulating Plastic Bushing for PCB, Electronics, Motherboard, Robotics & DIY - Image 4](https://m.media-amazon.com/images/I/81zRRs0DuHL.jpg)
![M4 x 20mm Black Nylon Spacers Standoff Washers, Pack of 12 – Cylindrical Insulating Plastic Bushing for PCB, Electronics, Motherboard, Robotics & DIY - Image 5](https://m.media-amazon.com/images/I/614IhZPt8QL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality product
*by S***R on 11 May 2026*

Great quality product, item as described and ideal for the job

### ⭐⭐⭐⭐⭐ Strong, versatile.
*by N***Y on 11 May 2026*

These can be used for a multitude of things, but I used them to extent some stair rods. They are strong, with the correct diameter with a good finish.

### ⭐⭐⭐⭐ Good
*by P***M on 29 September 2019*

Are what they are well sized and produced

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-10*