---
product_id: 251199692
title: "Stanley National Hardware 2193BC #546-5/16\"x2-1/2 x5 U Bolt w/Plate & Hex Nuts in Stainless Steel"
brand: "national hardware"
price: "20927 Ft"
currency: HUF
in_stock: true
url: https://www.desertcart.hu/products/251199692-stanley-national-hardware-2193bc-546-5-16x2-1-2-x5
store_origin: HU
region: Hungary
---

# 5/16"-18 UNC Thread Size 300 Series Stainless Steel Corrosion Resistance Grade 8 Hardness for Maximum Strength Stanley National Hardware 2193BC #546-5/16"x2-1/2 x5 U Bolt w/Plate & Hex Nuts in Stainless Steel

**Brand:** national hardware
**Price:** 20927 Ft
**Availability:** ✅ In Stock

## Summary

> 🔧 Secure your projects with strength and style—because your work deserves the best!

## Quick Answers

- **What is this?** Stanley National Hardware 2193BC #546-5/16"x2-1/2 x5 U Bolt w/Plate & Hex Nuts in Stainless Steel by national hardware
- **How much does it cost?** 20927 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/251199692-stanley-national-hardware-2193bc-546-5-16x2-1-2-x5)

## 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

- • **Trusted Legacy:** Backed by National Hardware’s century-long commitment to quality and innovation, made proudly in the USA.
- • **Unmatched Durability:** Crafted from premium 300 series stainless steel with 18% chromium for superior rust and corrosion resistance—built to last indoors and out.
- • **Precision Engineering:** 5/16"-18 UNC thread size combined with Grade 8 hardness ensures a secure, high-strength fastening solution for demanding applications.
- • **Versatile Application:** Perfectly designed for automotive, plumbing, wood, and pipe fastening—adaptable to both professional and DIY projects.
- • **Complete Fastening Kit:** Includes U-bolt, plate, and hex nuts for a hassle-free installation experience—everything you need in one package.

## Overview

The Stanley National Hardware 2193BC U-Bolt is a high-grade fastening solution made from 300 series stainless steel with 18% chromium, offering exceptional corrosion resistance and durability. Featuring a 5/16"-18 UNC thread size and Grade 8 hardness, it delivers superior strength for automotive, plumbing, wood, and pipe applications. This kit includes the U-bolt, plate, and hex nuts, ensuring a complete and reliable fastening system trusted by professionals and DIYers alike.

## Description

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. Providing latching and fastening options for all of your indoor and outdoor uses. Barrel, Dutch door, flush, mortise and surface bolts designed with ease of use and security in mind. Utilizing 300 series stainless steel with 18% chromium, which gives the corrosion protection as pure chromium in chrome plating. These products will not corrode or rust when exposed to the weather.

## Features

- Manufactured from stainless steel
- Designed for fastening products to pipe, wood, etc
- Suitable for automotive, plumbing and other home and industrial applications
- Plate and nuts included

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Stainless Steel |
| Thread Size | 5/16"-18 |
| Exterior Finish | Zinc |
| Manufacturer Grade | Grade 8 |
| Head Style | Cup |
| Colour | Stainless Steel |
| Fastener Type | U-Bolt |
| Brand | National Hardware |
| Thread Type | UNC |
| Item Diameter | 0.31 Inches |
| Thread Style | Right Hand |
| Item Hardness | Grade 8 |
| Size | #546-5/16"x2-1/2"x5" |
| Metal Type | Stainless Steel |
| Head Type | Button |
| Maximum Shear Strength | 50-60 ksi (345-414 MPa) |
| UPC | 038613191440 |
| Global Trade Identification Number | 00038613191440 |
| Manufacturer | KWIK9 |
| Country of Origin | USA |
| Item model number | N222-471 |
| ASIN | B000BPK8F6 |

## Product Details

- **Material:** Stainless Steel
- **Thread Size:** 5/16"-18
- **Exterior Finish:** Zinc
- **Manufacturer Grade:** Grade 8
- **Head Style:** Cup

## Images

![Stanley National Hardware 2193BC #546-5/16"x2-1/2 x5 U Bolt w/Plate & Hex Nuts in Stainless Steel - Image 1](https://m.media-amazon.com/images/I/61LAi0LgmQL.jpg)
![Stanley National Hardware 2193BC #546-5/16"x2-1/2 x5 U Bolt w/Plate & Hex Nuts in Stainless Steel - Image 2](https://m.media-amazon.com/images/I/91Oh5L19yHL.jpg)
![Stanley National Hardware 2193BC #546-5/16"x2-1/2 x5 U Bolt w/Plate & Hex Nuts in Stainless Steel - Image 3](https://m.media-amazon.com/images/I/51U7uqb+y0L.jpg)
![Stanley National Hardware 2193BC #546-5/16"x2-1/2 x5 U Bolt w/Plate & Hex Nuts in Stainless Steel - Image 4](https://m.media-amazon.com/images/I/51gyMLoX6ML.jpg)
![Stanley National Hardware 2193BC #546-5/16"x2-1/2 x5 U Bolt w/Plate & Hex Nuts in Stainless Steel - Image 5](https://m.media-amazon.com/images/I/71N6-5ioLfL.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

## Frequently Bought Together

- National Hardware N222-471 2193BC U Bolt in Stainless Steel
- Hillman 3002 5/16-18-Inch Stainless Steel Wing Nut, 4-Pack

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-15*