---
product_id: 185444876
title: "M3 (3mm) All Metal Self Locking Nut - Stainless Steel (A2) (Pack of 20)"
brand: "singularity supplies"
price: "S$15"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/185444876-m3-3mm-all-metal-self-locking-nut-stainless-steel-a2
store_origin: SG
region: Singapore
---

# 3mm precision fit ISO 965 tolerance standard A2 stainless steel durability M3 (3mm) All Metal Self Locking Nut - Stainless Steel (A2) (Pack of 20)

**Brand:** singularity supplies
**Price:** S$15
**Availability:** ✅ In Stock

## Summary

> 🔩 Lock in reliability, unlock your project’s potential!

## Quick Answers

- **What is this?** M3 (3mm) All Metal Self Locking Nut - Stainless Steel (A2) (Pack of 20) by singularity supplies
- **How much does it cost?** S$15 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/185444876-m3-3mm-all-metal-self-locking-nut-stainless-steel-a2)

## Best For

- singularity supplies enthusiasts

## Why This Product

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

## Key Features

- • **Bulk Ready:** Pack of 20 nuts to keep your projects moving without interruption.
- • **Secure Grip:** Self-locking design ensures vibration-proof fastening every time.
- • **Built to Last:** Crafted from premium A2 stainless steel for superior corrosion resistance.
- • **Precision Perfect:** Engineered to exact 3mm specs for flawless assembly.
- • **Professional Grade:** Meets ISO 965 tolerance standards for consistent, reliable performance.

## Overview

The M3 (3mm) All Metal Self Locking Nut is a pack of 20 hex-head nuts made from durable A2 stainless steel. Designed to ISO 965 standards, these self-locking nuts provide secure, vibration-resistant fastening ideal for precision engineering and professional applications.

## Description

M3 (3mm) All Metal Self Locking Nut - Stainless Steel (A2) (Pack of 20)

## Features

- Head Type: Hex
- Material: Stainless Steel
- Measurement: Metric
- Spec: ART980
- Tolerance: ISO 965 Standard

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Singularity Supplies Ltd |
| Size | M3 - A2(20) |
| Finish | Stainless Steel |
| Material | Stainless Steel |
| Number of Pieces | 20 |
| Head Style | Hex |
| Cutting Diameter | 3 Millimetres |
| Batteries included? | No |
| Batteries Required? | No |
| Assembled Diameter | 3 Millimetres |
| Item Weight | 8 g |

## Product Details

- **Material:** Stainless Steel
- **Fastener type:** Hex
- **Thread size:** M 3
- **Exterior finish:** Stainless Steel,Metal,Nylon
- **Metal type:** Stainless Steel
- **Finish type:** Stainless Steel
- **Drive system:** External Hex
- **Brand:** Singularity Supplies
- **Item dimensions L x W x H:** 12 x 2 x 1 centimetres
- **Item weight:** 8 Grams

## Images

![M3 (3mm) All Metal Self Locking Nut - Stainless Steel (A2) (Pack of 20) - Image 1](https://m.media-amazon.com/images/I/716elRjUUsL.jpg)
![M3 (3mm) All Metal Self Locking Nut - Stainless Steel (A2) (Pack of 20) - Image 2](https://m.media-amazon.com/images/I/713+NR4eGFL.jpg)
![M3 (3mm) All Metal Self Locking Nut - Stainless Steel (A2) (Pack of 20) - Image 3](https://m.media-amazon.com/images/I/71PNp2GtDQL.jpg)
![M3 (3mm) All Metal Self Locking Nut - Stainless Steel (A2) (Pack of 20) - Image 4](https://m.media-amazon.com/images/I/81ucZT2TW8L.jpg)

## Available Options

This product comes in different **Size Name** options.

## Frequently Bought Together

- M3 (3mm) All Metal Self Locking Nut - Stainless Steel (A2) (Pack of 20)
- AMLOOPH M5 Washers, M5 x 20mm Metal Flat Penny Washer Thickness 1.2mm- A2 304 Stainless Steel Washers (20 Pack), Large OD Plain Wide Metal Round Flat Spacer Repair Washer for Screws Bolts
- M4 Washers, M4 x 25mm Penny Washers, (Pack of 20) A2 304 Stainless Steel Washer, Flat Repair Washer, Large Metal Plain Round Chrome for Screws & Bolts

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sg/products/185444876-m3-3mm-all-metal-self-locking-nut-stainless-steel-a2](https://www.desertcart.sg/products/185444876-m3-3mm-all-metal-self-locking-nut-stainless-steel-a2)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-12*