---
product_id: 278092187
title: "National Hardware N222-471 2193BC U Bolt in Stainless Steel"
brand: "national hardware"
price: "107 Lei"
currency: RON
in_stock: true
reviews_count: 5
url: https://www.desertcart.ro/products/278092187-national-hardware-n222-471-2193bc-u-bolt-in-stainless-steel
store_origin: RO
region: Romania
---

# National Hardware N222-471 2193BC U Bolt in Stainless Steel

**Brand:** national hardware
**Price:** 107 Lei
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** National Hardware N222-471 2193BC U Bolt in Stainless Steel by national hardware
- **How much does it cost?** 107 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/278092187-national-hardware-n222-471-2193bc-u-bolt-in-stainless-steel)

## 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

## Description

National Hardware N222-471 2193BC U Bolt in Stainless Steel

## Features

- About this item     Authorized Replacement for Stanley Hardware Stock #N222-471     Designed for fastening products to pipe, wood, etc     Suitable for automotive, plumbing and other home and industrial applications     Plate and nuts included     Excellent for marine and other outdoor applications

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Steel |
| Grade Rating | Grade 2 |
| Thread Size | 5/16"-18 |
| Exterior Finish | Zinc |
| Manufacturer Grade | Grade 8 |
| Head Style | Cupped |
| Color | Stainless Steel |
| Fastener Type | U-Bolt |
| Brand | National Hardware |
| Thread Style | Left Hand |
| Size | #546-5/16"x2-1/2"x5" |
| Head Type | Button |
| Manufacturer | National Hardware |
| Part Number | N222-471 |
| Item Weight | 0.32 ounces |
| Product Dimensions | 5.6 x 4 x 1 inches |
| Country of Origin | USA |
| Item model number | N222-471 |
| Is Discontinued By Manufacturer | No |
| Style | Updated Packaging |
| Finish | Stainless Steel |
| Item Package Quantity | 1 |
| Measurement System | Inch |
| Mounting Type | Plate Mount |
| Certification | As |
| Usage | Wood |
| Included Components | (1) U-bolt, (1) plate, (2) hex nuts |
| Batteries Required? | No |
| Warranty Description | Warranty |

## Product Details

- **Material:** Alloy Steel
- **Grade Rating:** Grade 2
- **Thread Size:** 5/16"-18
- **Exterior Finish:** Zinc
- **Manufacturer Grade:** Grade 8

## Images

![National Hardware N222-471 2193BC U Bolt in Stainless Steel - Image 1](https://m.media-amazon.com/images/I/61LAi0LgmQL.jpg)
![National Hardware N222-471 2193BC U Bolt in Stainless Steel - Image 2](https://m.media-amazon.com/images/I/91Oh5L19yHL.jpg)
![National Hardware N222-471 2193BC U Bolt in Stainless Steel - Image 3](https://m.media-amazon.com/images/I/51U7uqb+y0L.jpg)

## Available Options

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

## Questions & Answers

**Q: What is the thread size so that I can order extra nuts?**
A: 5/16-18 (course). Fine thread would be 5/16-24. Checked with a thread gage and confirmed 5/16-18

**Q: Is there a link for a u bolt to fit a 1-3/4" od pipe, and long enough to go through 4x4 lumber and allowing for bolts and a little xtra room?**
A: No, I've used it supporting cat5 to at giant tent in a industrial setting on 2'' conduit

**Q: What would be the one for a 6" pvc pipe?**
A: I purchased a 2” for a 2”pipe and it fit perfectly. I assume you would therefor need a 6”

**Q: Can you please send a direct link for the u bolt that will fit around the 4”pvc pipe ?**
A: https://www.amazon.com/National-Hardware-N222-174-2190BC-plated/dp/B000BPRP8Y/ref=psdc_16409751_t2_B000BPK8F6

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    U Bolt
  

*by F***E on Reviewed in Canada on 10 July 2020*

Product as described. Thanks.

### ⭐ 







  
  
    to the right dimension
  

*by L***  on Reviewed in Canada on 8 June 2020*

The item came in but the diameter of the metal was 3/16" and not 1/4".The tag on the item also states 1/4..

### ⭐⭐⭐⭐⭐ 







  
  
    Not the correct size, but easy to make fit!
  

*by B***K on Reviewed in the United States on 4 August 2013*

My search for a replacement stainless steel U-bolt for my antenna mast found this one.  The existing U-bolt is steel & was rusting after years exposed to the elements.As my review title says, this U-bolt is too narrow at 1-1/8".  I needed a 1-1/4" U-bolt, the standard antenna mast size.  This is stainless steel, so there's no problems with resizing it on a piece of 1-1/4" pipe.  No need to worry about any scrapes or nicks rusting on stainless steel.  The resizing was very easy to do on an old piece of pipe.  I Hammered the U-bolt onto the pipe, then use a vise to finalize the shape.  To my surprise, the plate still fits perfectly! :)The pros:+ $6.46, which included free shipping, or $2.10 + free shipping if you get this when it's an "add-on item"!+ 300 grade Stainless steel, so it will never rust & it will last forever!+ Comes with a stainless steel plate & 2 stainless steel 1/4-20 nuts.The cons:+ Doesn't come in 1-1/4" size.I bought 3 of these & I may up the product rating to 5 stars after I install one of these U-bolts.► Update - August 8, 2013I installed one of these today on a 1-1/4" antenna pole & the resizing made the U-bolt a perfect fit.  I've decided to up my product rating to 5 stars.► Update October 21, 2015I have 2 of these installed now.  The first one I installed on an antenna pole, 2 years ago, still looks like new!  Not wanting to be without a couple on hand, I just added another one of these on my Amazon order.  I couldn't pass up the $2.10 + free shipping price!.

## Frequently Bought Together

- National Hardware N222-471 2193BC U Bolt in Stainless Steel
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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-01-25*