---
product_id: 684228808
title: "Mr. Pen- Nuts and Bolts Assortment Kit, 540 pcs, Stainless Steel, M3 Screws (7 Sizes 6-30mm) Button Head Socket Cap Screws"
brand: "mr. pen"
price: "$49.47"
currency: USD
in_stock: true
reviews_count: 8
category: "Mr. Pen"
url: https://www.desertcart.us/products/684228808-mr-pen-nuts-and-bolts-assortment-kit-540-pcs-stainless
store_origin: US
region: United States of America
---

# 540 pcs total for every fix Premium stainless steel, rust-resistant M3 screws in 7 versatile sizes Mr. Pen- Nuts and Bolts Assortment Kit, 540 pcs, Stainless Steel, M3 Screws (7 Sizes 6-30mm) Button Head Socket Cap Screws

**Brand:** mr. pen
**Price:** $49.47
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your DIY game with the ultimate fastener arsenal!

## Quick Answers

- **What is this?** Mr. Pen- Nuts and Bolts Assortment Kit, 540 pcs, Stainless Steel, M3 Screws (7 Sizes 6-30mm) Button Head Socket Cap Screws by mr. pen
- **How much does it cost?** $49.47 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/684228808-mr-pen-nuts-and-bolts-assortment-kit-540-pcs-stainless)

## Best For

- mr. pen enthusiasts

## Why This Product

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

## Key Features

- • **All-in-One Fixer:** 540 precision-engineered pieces ready for any project
- • **Pro-Grade Performance:** Precision threading and strong grip ensure secure, professional assemblies
- • **Organized & Accessible:** Sturdy reusable storage box keeps your kit neat and ready to go
- • **Perfect Fit Every Time:** Seven M3 screw sizes (6-30mm) to match your exact needs
- • **Rust-Proof Reliability:** Crafted from premium stainless steel for lasting durability indoors and out

## Overview

The Mr. Pen Nuts and Bolts Assortment Kit offers 540 stainless steel button head socket cap screws, nuts, and washers in seven M3 sizes (6-30mm). Designed for durability and rust resistance, this kit is perfect for automotive, construction, and home improvement projects. Its precision threading and organized storage box make it a must-have for professionals and DIY enthusiasts alike.

## Description

Mr. Pen stainless steel button head fastener Kit includes 540 pieces, perfect for a variety of fastening tasks.Crafted from premium stainless steel, these fasteners are highly durable, rust-resistant, and ideal for both indoor and outdoor use.The kit features an assortment of button head bolts, nuts, and washers, conveniently organized in a sturdy, reusable storage box for easy access.Designed with precision threading and strong grip, these fasteners ensure reliable and secure assembly for DIY projects or professional use.Suitable for automotive, construction, and home improvement tasks, this comprehensive kit provides versatility and long-lasting performance.

Review: Tons for bolts for the price, good for e-bike repair - I really wish it made sense for me to buy a smaller quantity of these, because I only needed two (have now used four total). My kickstand fell off my e-bike because the bolts that came with it were too short and rattled themselves loose with my noticing. So I was on a hunt for two replacements that would work with my bike repair travel hex tool, rather than worrying about needing a different tool to tighten on the go. Buying this entire multipack was somehow less expensive than buying individually at the two local home improvement stores I checked first. Was impressed with quality, none of the bolts I tried had any trouble threading into washers and nuts. Since repairing my kickstand, I also switched out the bolts that hold my rear rack on, because these felt sturdier than the OEM ones. Will have enough to address any other repairs for the life of the bike and beyond.
Review: Rc builders dream - Rc builders dream, very great quality, ive used almost all of the screws, not 1 has stripped out yet, great price. I have now baught 2 and ready to buy the 3rd kit. All screws were individually wrapped. All screws were the right size. Great buy.

## Features

- Mr. Pen stainless steel button head fastener Kit includes 540 pieces, perfect for a variety of fastening tasks.
- Crafted from premium stainless steel, these fasteners are highly durable, rust-resistant, and ideal for both indoor and outdoor use.
- The kit features an assortment of button head bolts, nuts, and washers, conveniently organized in a sturdy, reusable storage box for easy access.
- Designed with precision threading and strong grip, these fasteners ensure reliable and secure assembly for DIY projects or professional use.
- Suitable for automotive, construction, and home improvement tasks, this comprehensive kit provides versatility and long-lasting performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D6L32JQ4 |
| Best Sellers Rank | #7,165 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #13 in Nut & Bolt Assortment Sets |
| Compatible groove diameter | 3 Millimeters |
| Date First Available | June 8, 2024 |
| Fastener Type | Bolt |
| Finish Type | Stainless Steel |
| Head Style | Button |
| Item Diameter | 3 Millimeters |
| Item Weight | 7.4 ounces |
| Manufacturer | Mr. Pen |
| Number of Items | 540 |
| Number of Pieces | 540 |
| Shape | Round |
| Thread Size | M3 |
| UPC | 840316953535 |

## Product Details

- **Brand:** Mr. Pen
- **Color:** Silver
- **Item dimensions L x W x H:** 5.1 x 3.5 x 1 inches
- **Material:** Stainless Steel
- **Size:** 540 pcs, M3(7 Sizes 6-30mm)

## Images

![Mr. Pen- Nuts and Bolts Assortment Kit, 540 pcs, Stainless Steel, M3 Screws (7 Sizes 6-30mm) Button Head Socket Cap Screws - Image 1](https://m.media-amazon.com/images/I/81s6muyACPL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Tons for bolts for the price, good for e-bike repair
*by A***. on July 17, 2025*

I really wish it made sense for me to buy a smaller quantity of these, because I only needed two (have now used four total). My kickstand fell off my e-bike because the bolts that came with it were too short and rattled themselves loose with my noticing. So I was on a hunt for two replacements that would work with my bike repair travel hex tool, rather than worrying about needing a different tool to tighten on the go. Buying this entire multipack was somehow less expensive than buying individually at the two local home improvement stores I checked first. Was impressed with quality, none of the bolts I tried had any trouble threading into washers and nuts. Since repairing my kickstand, I also switched out the bolts that hold my rear rack on, because these felt sturdier than the OEM ones. Will have enough to address any other repairs for the life of the bike and beyond.

### ⭐⭐⭐⭐⭐ Rc builders dream
*by M***Y on November 30, 2025*

Rc builders dream, very great quality, ive used almost all of the screws, not 1 has stripped out yet, great price. I have now baught 2 and ready to buy the 3rd kit. All screws were individually wrapped. All screws were the right size. Great buy.

### ⭐⭐⭐⭐⭐ Good price, Quality Product!
*by M***X on February 17, 2025*

Mr Pen M3 Assortment arrived in a small clear box that had separate slots for each screw size and were labeled with each size as well. My box came fully intact, no cracks or issues as I had read in some other reviews. Each screw size, including nuts and washers, were packaged in their own slightly greased ziplock bag. Very convenient for keeping them organized. The quality worked well for me & this pack went beyond expectations, I used them on my 3D prints. Definitely would purchase from Mr. Pen again.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-20*