---
product_id: 209343877
title: "304 Stainless Steel Rectangular Bar, Unpolished (Mill) Finish, Annealed, ASTM A276, 1/8\" Thickness, 1-1/2\" Width, 36\" Length, Solid Metal Flat Bar for Fabrication & DIY - OnlineMetals"
brand: "online metals"
price: "€ 96.82"
currency: EUR
in_stock: true
url: https://www.desertcart.gr/products/209343877-304-stainless-steel-rectangular-bar-unpolished-mill-finish-annealed-astm
store_origin: GR
region: Greece
---

# 36" length for versatile fabrication 1/8" thickness for precision strength Grade 304 stainless steel resists rust 304 Stainless Steel Rectangular Bar, Unpolished (Mill) Finish, Annealed, ASTM A276, 1/8" Thickness, 1-1/2" Width, 36" Length, Solid Metal Flat Bar for Fabrication & DIY - OnlineMetals

**Brand:** online metals
**Price:** € 96.82
**Availability:** ✅ In Stock

## Summary

> 🛠️ Build Bold, Build Lasting — The Stainless Steel Bar That Means Business

## Quick Answers

- **What is this?** 304 Stainless Steel Rectangular Bar, Unpolished (Mill) Finish, Annealed, ASTM A276, 1/8" Thickness, 1-1/2" Width, 36" Length, Solid Metal Flat Bar for Fabrication & DIY - OnlineMetals by online metals
- **How much does it cost?** € 96.82 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/209343877-304-stainless-steel-rectangular-bar-unpolished-mill-finish-annealed-astm)

## Best For

- online metals enthusiasts

## Why This Product

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

## Key Features

- • **Versatile 36" Length:** Generous length fits a wide range of fabrication needs, from custom brackets to machine bases.
- • **Precision-Cut Strength:** Solid 1/8" thick flat bar ensures reliable structural integrity for your toughest projects.
- • **Corrosion-Resistant Grade 304:** Premium stainless steel resists rust and staining, perfect for indoor and outdoor use.
- • **Consistent Rectangular Profile:** True flat bar shape guarantees precise layouts, clamping, and repeatability for flawless builds.
- • **Fabrication-Ready Annealed Finish:** Mill finish and annealed for easy cutting, welding, bending, and machining—ideal for pros and DIYers alike.

## Overview

This 304 stainless steel rectangular bar from OnlineMetals offers a durable, corrosion-resistant solution with a precise 1/8" thickness, 1.5" width, and 36" length. Annealed and finished to ASTM A276 standards, it’s engineered for professional-grade fabrication, welding, and machining, making it the go-to choice for millennial makers and managers who demand quality and reliability in every project.

## Description

Sponsored Ad - 304 Stainless Steel Rectangular Bar, Unpolished (Mill) Finish, Annealed, ASTM A276, 1/8" Thickness, 1-1/2" Width, 36" Length, Solid Metal Flat Bar for Fabrication & DIY - OnlineMetals

## Features

- [304 SS FLAT/RECTANGULAR BAR | SIZE] Premium 304 stainless steel bar (aka stainless steel flat bar / flat steel bar) in 1/8" thickness x 1-1/2" width x 36" length. Solid flat metal bar/barstock—mill (unpolished) finish, annealed per ASTM A276 for reliable performance in shop, garage, or jobsite.
- [STRENGTH & CORROSION RESISTANCE] 304 stainless steel resists rust and staining for indoor/outdoor fixtures, trim, frames, brackets, and support projects. Durable, machinable, weldable rectangular steel bar for structural tasks that need clean edges, flat faces, and consistent mill surface.
- [FABRICATION‑READY | DIY & INDUSTRIAL] Cut, saw, drill, tap, grind, weld, or mill; form light bends (annealed = more formable) for mounting, bracket, rail, guard, plate, and fixture builds. Great raw metal for making prototypes, jigs, shims, spacers—ideal flat bar steel for custom parts and repairs.
- [ACCURATE, VERSATILE STOCK] Consistent rectangular profile means easier layout and repeatability versus stainless steel strips or sheet; a true steel flat bar/metal flat bar you can square, clamp, and fixture. Use in equipment frames, hardware installs, panel edges, machine bases, and shop fabrication.
- [SPEC | BRAND CONFIDENCE] Grade 304 stainless, ASTM A276, annealed, unpolished (mill) finish. Nominal size: 1/8" x 1-1/2" x 36" (0.125" x 1.5" x 36"). Trusted OnlineMetals quality rectangular steel flat—reliable steel bars stock for pros, makers, and serious DIY projects.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Thickness | 0.13 Inches |
| Item Form | Bar |
| Grade Rating | 304 |
| Specification Met | Astm A276 |
| Number of Items | 1 |
| Manufacturer | OnlineMetals |
| Part Number | 4390 |
| Item Weight | 2 pounds |
| Package Dimensions | 36 x 1.5 x 0.2 inches |
| Item model number | B000H9JTQU |
| Size | 0.125" Thk | 1.5" width |
| Style | 36" length |
| Finish | Unpolished |
| Item Package Quantity | 1 |
| Cutting Diameter | 1.5 Inches |
| Measurement System | Inch |

## Product Details

- **Material:** Stainless Steel
- **Brand:** Online Metals
- **Color:** silver
- **Shape:** Rectangular
- **Item Diameter:** 1.5 Inches

## Images

![304 Stainless Steel Rectangular Bar, Unpolished (Mill) Finish, Annealed, ASTM A276, 1/8" Thickness, 1-1/2" Width, 36" Length, Solid Metal Flat Bar for Fabrication & DIY - OnlineMetals - Image 1](https://m.media-amazon.com/images/I/41pLZKWEAvL.jpg)

## Available Options

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

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.gr/products/209343877-304-stainless-steel-rectangular-bar-unpolished-mill-finish-annealed-astm](https://www.desertcart.gr/products/209343877-304-stainless-steel-rectangular-bar-unpolished-mill-finish-annealed-astm)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-25*