---
product_id: 264541153
title: "M20 x 1.5 Stainless Steel 316 Slim Round Head Allen Key Slotted Plug with Copper Washer"
brand: "adaptormount"
price: "$33"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/264541153-m20-x-1-5-stainless-steel-316-slim-round-head
store_origin: NZ
region: New Zealand
---

# Corrosion-resistant 316 SS High-temp copper washer M20 x 1.5 size M20 x 1.5 Stainless Steel 316 Slim Round Head Allen Key Slotted Plug with Copper Washer

**Brand:** adaptormount
**Price:** $33
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate Your Installations with Precision and Style!

## Quick Answers

- **What is this?** M20 x 1.5 Stainless Steel 316 Slim Round Head Allen Key Slotted Plug with Copper Washer by adaptormount
- **How much does it cost?** $33 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/264541153-m20-x-1-5-stainless-steel-316-slim-round-head)

## Best For

- adaptormount enthusiasts

## Why This Product

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

## Key Features

- • **Sleek Aesthetic:** Polished finish that not only performs but also looks great in any application.
- • **Unmatched Durability:** Crafted from premium Stainless Steel 316, this plug is built to withstand the harshest environments.
- • **Precision Engineering:** CNC machined for a perfect fit, ensuring leak-free performance every time.
- • **Temperature Resilience:** Includes a pure copper washer that endures extreme temperatures without cracking.
- • **Versatile Applications:** Ideal for marine, automotive, and motorcycle installations—perfect for your next project.

## Overview

The M20 x 1.5 Stainless Steel 316 Slim Round Head Allen Key Slotted Plug is engineered for durability and precision. Ideal for various applications, it features a corrosion-resistant body, a polished finish, and a high-temperature copper washer, making it the perfect choice for marine, automotive, and motorcycle installations.

## Description

M20 x 1.5 Stainless Steel 316 Slim Round Head Allen Key Slotted Plug with Copper Washer

## Features

- Stainless Steel 316 for corrosive environments, rigid and durable body design.
- Precision CNC machined for tight, leak free performance and has polished finish appearance.
- Clean metric M20*1.5 straight thread. Slim round head with Allen Key slot. Suitable for common marine, automotive and motorcycle replacement sensors and drains.
- Use for your custom oxygen sensor install, exhaust, down pipe, headers, exchangers, oil drains and other installations where sleek metric plug is needed.
- Comes with pure copper washer ring that will not melt at high working temperatures and won't crack at very low temperature.

## Product Details

- **Material:** Stainless Steel
- **Brand:** AdaptorMount
- **Color:** Silver
- **Item Weight:** 31 Grams
- **Number of Items:** 1

## Images

![M20 x 1.5 Stainless Steel 316 Slim Round Head Allen Key Slotted Plug with Copper Washer - Image 1](https://m.media-amazon.com/images/I/61-drAP8VyL.jpg)
![M20 x 1.5 Stainless Steel 316 Slim Round Head Allen Key Slotted Plug with Copper Washer - Image 2](https://m.media-amazon.com/images/I/61Q7XUiRRoL.jpg)
![M20 x 1.5 Stainless Steel 316 Slim Round Head Allen Key Slotted Plug with Copper Washer - Image 3](https://m.media-amazon.com/images/I/61PnWZwvNSL.jpg)
![M20 x 1.5 Stainless Steel 316 Slim Round Head Allen Key Slotted Plug with Copper Washer - Image 4](https://m.media-amazon.com/images/I/71SHafxRnNL.jpg)

## Frequently Bought Together

- M20 x 1.5 Stainless Steel 316 Slim Round Head Allen Key Slotted Plug with Copper Washer
- Aceteel M20 X 1.5 Metric Hand Tap, Right Hand M20 X 1.5mm Threading Hand Tap 1Pair

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**Shop now:** [https://www.desertcart.nz/products/264541153-m20-x-1-5-stainless-steel-316-slim-round-head](https://www.desertcart.nz/products/264541153-m20-x-1-5-stainless-steel-316-slim-round-head)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-12*