---
product_id: 31222543
title: "National Hardware Solid Flat Bar, 3 in x 36 in, Plain Steel | Hot-Rolled ASTM A1011 Stock for Base Plates, Braces, Brackets and Reinforcement; Welds and Drills Cleanly"
brand: "national hardware"
price: "304 zł"
currency: PLN
in_stock: true
category: "National Hardware"
url: https://www.desertcart.pl/products/31222543-national-hardware-solid-flat-bar-3-in-x-36-in
store_origin: PL
region: Poland
---

# Hot-rolled ASTM A1011 steel Welds & drills cleanly 3in x 36in solid flat bar National Hardware Solid Flat Bar, 3 in x 36 in, Plain Steel | Hot-Rolled ASTM A1011 Stock for Base Plates, Braces, Brackets and Reinforcement; Welds and Drills Cleanly

**Brand:** national hardware
**Price:** 304 zł
**Availability:** ✅ In Stock

## Summary

> 🛠️ Reinforce your projects with steel that means business!

## Quick Answers

- **What is this?** National Hardware Solid Flat Bar, 3 in x 36 in, Plain Steel | Hot-Rolled ASTM A1011 Stock for Base Plates, Braces, Brackets and Reinforcement; Welds and Drills Cleanly by national hardware
- **How much does it cost?** 304 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/31222543-national-hardware-solid-flat-bar-3-in-x-36-in)

## Best For

- national hardware enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Hot-rolled plain steel ensures unmatched durability for heavy-duty reinforcement.
- • **Trusted Legacy:** National Hardware’s century-long expertise guarantees superior product reliability and innovation.
- • **Precision-Ready:** Meets ASTM A1011 standards for consistent quality and professional-grade fabrication.
- • **Versatile Dimensions:** 3 inches wide by 36 inches long—perfectly sized for brackets, braces, and base plates.
- • **Effortless Fabrication:** Plain steel surface allows seamless welding, drilling, and forming without oil interference.

## Overview

National Hardware’s 3 in x 36 in solid flat bar is a hot-rolled plain steel flat bar engineered to ASTM A1011 standards, delivering exceptional strength and clean weldability. Ideal for structural supports, base plates, and custom fabrication, this versatile steel bar combines durability with ease of use, backed by over 100 years of manufacturing excellence.

## Description

Product Description Transform your construction projects with National Hardware's premium 3 in x 36 in solid flat steel bar, engineered for superior performance and reliability. This hot-rolled plain steel flat bar delivers exceptional strength and versatility for reinforcement applications, base plates, and structural supports across residential, commercial, and industrial environments. Crafted from high-quality steel material that meets rigorous ASTM Specification A1011 standards, this metal flat bar provides outstanding forming and welding characteristics essential for professional fabrication work. The plain steel construction allows for seamless welding, forming, and customization without oil treatment interference, making it ideal for contractors and builders who demand precision. Measuring 3 in wide by 36 in long with dimensions of 7.6 cm x 7.6 cm x 91.4 cm, this steel flat bar offers optimal sizing for diverse construction applications. Whether creating custom brackets, reinforcing structures, or fabricating components, this flat steel bar provides the durability and workability needed for demanding projects. Designed specifically for exterior applications, this metal bar withstands harsh environmental conditions while maintaining structural integrity. The hot-rolled manufacturing process ensures consistent performance and enhanced strength properties that professionals rely on for critical steel bar applications. National Hardware's commitment spans over a century of manufacturing innovation, delivering superior product standards with proven engineering expertise and customer satisfaction for dependable steel bar solutions. From the Manufacturer Whether for home, farm, builder or industrial customers, National has all the right hardware in the sizes and finishes you need. With over a century of service National is committed to maintaining the highest level of product quality, innovation and manufacturing technology. Quality metal sheets and rod both threaded and smooth for all for your construction projects. Plain steel contract-it materials allow you to weld, form and fabricate easily because the steel is not treated with oil. The plain steel assortment includes angles, flats, sheets, sheet metal, channels, tubes and rods, rebar and squares, among others.

## Features

- STEEL BAR CONSTRUCTION: This 3 in x 36 in flat steel bar delivers exceptional durability with hot-rolled plain steel construction, perfect for reinforcement applications, base plates, and structural supports in construction projects.
- METAL SPECIFICATIONS: Hot-rolled steel flat bar meets ASTM A1011 specification standards, providing reliable performance for industrial applications with excellent forming and welding characteristics for custom fabrication needs.
- DIMENSIONS: Steel flat bar measures 3 in wide by 36 in long, offering versatile sizing for construction reinforcement, bracket manufacturing, and structural support applications in both residential and commercial projects.
- APPLICATIONS: Flat steel bar excels in exterior construction applications, providing robust metal reinforcement for base plates, structural supports, brackets, and custom fabrication projects requiring durable steel materials.
- FABRICATION: Plain steel construction allows easy welding, forming, and machining without oil treatment interference, making this metal flat bar ideal for custom construction and industrial manufacturing applications.
- QUALITY: National Hardware brand ensures over a century of manufacturing excellence with color-coded labeling system for easy identification, backed by proven innovation and superior product standards.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0027E1PQA |
| Best Sellers Rank | #37,239 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #626 in Hardware Brackets |
| Brand Name | National Hardware |
| Color | Plain Steel |
| Customer Reviews | 4.5 4.5 out of 5 stars (687) |
| Global Trade Identification Number | 00038613301375 |
| Grade Rating | Grade 8 |
| Included Components | Hardware;Door, Gate & Window Hardware;screen-door-hardware |
| Item Diameter | 3 inches |
| Item Dimensions | 35.98 x 2.99 x 2.99 inches |
| Item Form | Flat |
| Item Shape | Flat |
| Item Thickness | 3 inches |
| Item Type Name | Stanley National Hardware N301-374 4062BC Solid Flat in Plain Steel, 3" x 36" |
| Item Weight | 5.9 ounces |
| Manufacturer | National Hardware |
| Material | Metal |
| Model Number | N301-374 |
| Number of Items | 1 |
| Part Number | N301374 |
| Specification Met | Astm A1011 |
| UPC | 038613301375 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** National Hardware
- **Color:** Plain Steel
- **Item dimensions L x W x H:** 35.98 x 2.99 x 2.99 inches
- **Material:** Metal
- **Shape:** Flat

## Images

![National Hardware Solid Flat Bar, 3 in x 36 in, Plain Steel | Hot-Rolled ASTM A1011 Stock for Base Plates, Braces, Brackets and Reinforcement; Welds and Drills Cleanly - Image 1](https://m.media-amazon.com/images/I/41icMWp8u1L.jpg)
![National Hardware Solid Flat Bar, 3 in x 36 in, Plain Steel | Hot-Rolled ASTM A1011 Stock for Base Plates, Braces, Brackets and Reinforcement; Welds and Drills Cleanly - Image 2](https://m.media-amazon.com/images/I/517gupa+9ZL.jpg)
![National Hardware Solid Flat Bar, 3 in x 36 in, Plain Steel | Hot-Rolled ASTM A1011 Stock for Base Plates, Braces, Brackets and Reinforcement; Welds and Drills Cleanly - Image 3](https://m.media-amazon.com/images/I/71N6-5ioLfL.jpg)

## Available Options

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

## Questions & Answers

**Q: is this 3/16 thick. >>.1875  ?**
A: Yes

**Q: what's it's ksi strength?**
A: lbs

**Q: What is the actual weight of each 3"x36" piece?  The description says "5.9 ounces" should it be "5.9 lbs"?**
A: Sam. Steel weight 0.2833 #s per cu in. So 36*3*0.125*.2833=3.8 lbs

**Q: Is this blade steel?**
A: Dude, this is not knife blade quality steel. If that's what you're looking for, search for "blade blanks" and then keep an eye out for decent materials like: Damascus steel, D2 Steel, 8Cr13mov is another good steel. Not as good as Sandvik 12C27 steel, but good enough... 440c and 420hc are both very good materials as well! I wish you luck!

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-08-19*