Skip to content
Free Local Pickup ● Ship to Your Hometown Store
Pro & Contractor Accounts ● Apply for Net Terms
100,000+ Products ● Trusted American Hardware Brands
FAQ Shipping & Returns Order Lookup Contact Account
National Hardware 2.4 in. H X 3 in. W X 0.125 in. D Black Carbon Steel Inside/Outside Square Corner

National Hardware 2.4 in. H X 3 in. W X 0.125 in. D Black Carbon Steel Inside/Outside Square Corner

Discover the National Hardware 2.4 in. H X 3 in. W X 0.125 in. D Black Carbon Steel Inside/Outside Square Corner for reliable support in your projects.
National Hardware MPN N351-496 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $5.99. Our online price is $6.99.
$6.99
Includes free shipping on orders over $75 · $8.99 standard below
Delivery in as little as 1–4 business days Order within — for same-day shipping
Cases of 5 · Order in multiples of 5

Sold by the Case · Save 15%

Take $5.25 off your case at checkout

Case of 5 · List Price $34.95
15% OFF with code at checkout $29.70
Use Code at Checkout

This product is packed and shipped from our distribution network as a complete case of 5. Apply casediscount at checkout to take 15% off your order.

Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

About Product Overview

Enhance the durability and stability of your projects with the National Hardware 2.4 in. H X 3 in. W X 0.125 in. D Black Carbon Steel Inside/Outside Square Corner. This exceptional square corner brace is designed to provide reliable support for both indoor and outdoor applications, making it a must-have for any DIY enthusiast or professional builder.

Crafted from high-quality black carbon steel, this product not only boasts a robust construction but also features a sleek finish that complements any design aesthetic. The National Hardware 2.4 in. H X 3 in. W X 0.125 in. D Black Carbon Steel Inside/Outside Square Corner is engineered to withstand the test of time, ensuring your projects remain structurally sound.

  • Dimensions: 2.4 inches in height, 3 inches in width, and 0.125 inches in depth
  • Material: Durable carbon steel for added strength
  • Versatile application: Ideal for both indoor and outdoor use
  • Easy installation: Designed for quick and hassle-free setup

Whether you're reinforcing furniture, building cabinets, or working on construction projects, the National Hardware 2.4 in. H X 3 in. W X 0.125 in. D Black Carbon Steel Inside/Outside Square Corner delivers unmatched performance. Don't compromise on quality—choose a product that offers both functionality and style.

Order your National Hardware 2.4 in. H X 3 in. W X 0.125 in. D Black Carbon Steel Inside/Outside Square Corner today and experience the difference in quality and reliability!

The Details Specifications

Brand National Hardware
SKU 5005972
UPC 886780005974
Unit 0
Case Pack Quantity 25 per case
Retail Unit Quantity 5
Unit of Measure 0 0
Dimensions (L × W × H) 4 × 3 × 4
Weight 2 lbs
Cubic Feet 0.00889 ft³
Country of Origin CHINA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

Ask our counter. Or theirs.

Most hardware stores can do more than you think. If we can't help you, the folks down the street probably can — just ask at the counter.

What we offer
Free Local Pickup Ship to your hometown store
Pro & Gov Accounts Net terms · tax-exempt
Ships Nationwide From our distribution network
Independent Network Real hardware stores
$0.68 of every dollar spent at a local independent business stays in the community. At a national chain, it's about fifteen cents. Civic Economics, multi-city retail studies
Their Counter
Try local first · we'll wait

The stores we send you to are local and independently run — often for generations, the kind of place where someone behind the counter knows the regulars. We don't own them. We just think they deserve the foot traffic. They can put most of what we sell on their next truck. Ask there before you check out here.

Find a local store →
Mon–Fri 6–5 PST
Independent hardware retailer? Join the network →
About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a co-op banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare