---
product_id: 21995697
title: "Simpson Strong-Tie RTC42 RTC 18-Gauge Galvanized Rigid Tie Corner for 2X Joist, 4x4 Post"
brand: "simpson strong-tie"
price: "Bs.556"
currency: BOB
in_stock: true
reviews_count: 10
url: https://www.desertcart.bo/products/21995697-simpson-strong-tie-rtc42-rtc-18-gauge-galvanized-rigid-tie
store_origin: BO
region: Bolivia
---

# precise 90° rigid corner connection 18-gauge galvanized steel no angled cuts or wood splitting Simpson Strong-Tie RTC42 RTC 18-Gauge Galvanized Rigid Tie Corner for 2X Joist, 4x4 Post

**Brand:** simpson strong-tie
**Price:** Bs.556
**Availability:** ✅ In Stock

## Summary

> 🔧 Build with confidence, connect with precision.

## Quick Answers

- **What is this?** Simpson Strong-Tie RTC42 RTC 18-Gauge Galvanized Rigid Tie Corner for 2X Joist, 4x4 Post by simpson strong-tie
- **How much does it cost?** Bs.556 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/21995697-simpson-strong-tie-rtc42-rtc-18-gauge-galvanized-rigid-tie)

## Best For

- simpson strong-tie enthusiasts

## Why This Product

- Trusted simpson strong-tie brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Split-Free Installation:** No angled cuts or fastening needed—preserve wood integrity every time.
- • **Premium Galvanized Finish:** ZMAX® or galvanized coating ensures superior corrosion resistance and longevity.
- • **Rock-Solid 90° Connection:** Engineered for flawless, rigid corner joins that outlast traditional methods.
- • **Ultra-Lightweight Yet Durable:** At just 0.01 ounces, it’s easy to handle without compromising strength.
- • **Perfect Fit for 4x4 Posts & 2x Joists:** Designed specifically for nominal 4x4 posts and 2x joists for seamless assembly.

## Overview

The Simpson Strong-Tie RTC42 is an 18-gauge galvanized rigid tie corner connector designed for 4x4 posts and 2x joists. It provides a strong, precise 90° connection without the need for angled cuts, preventing wood splitting. Finished with corrosion-resistant ZMAX® or galvanized coating, it ensures durability and long-lasting structural integrity.

## Description

Buy Simpson Strong-Tie RTC42 RTC 18-Gauge Galvanized Rigid Tie Corner for 2X Joist, 4x4 Post: Brackets - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great product! - I have now built 4 different workbenches using these on the corner posts. They make an exceptionally strong bench!
Review: Build A BENCH IN ONE HOUR - This product is wonderful. It's the second time I have used them. I built a super strong solid workbench in less than an hour!!! Cut four 4"x4"s to length, place the Simpson Strong Tie brackets over the 4x4s, screw them in with your drill, add the 2x4s and bingo D O N E !!! Later if you like, unscrew everything to transport the bench or modify your bench!!! It's a complete no brainer!! David Rodwell Winston Salem, NC

## Features

- Rigid Tie corner connectors provide a strong 90° connection
- No angled cuts or angled fastening that can split the wood
- Stronger than other methods of corner construction
- Nominal post size: 4x4
- Nominal joist size: 2x

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005QMVJOI |
| Best Sellers Rank | #274,027 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3,034 in Hardware Brackets |
| Brand | Simpson Strong-Tie |
| Brand Name | Simpson Strong-Tie |
| Color | Silver |
| Customer Reviews | 4.6 out of 5 stars 161 Reviews |
| Finish Type | Galvanized or ZMAX ® coating; see Corrosion Information |
| Finish Types | Galvanized or ZMAX ® coating; see Corrosion Information |
| Global Trade Identification Number | 00044315325304 |
| Included Components | Fitting |
| Item Depth | 4.8 inches |
| Item Dimensions | 7.05 x 7.05 x 5.13 inches |
| Item Type Name | Simpson Strong Tie RTC42 Rigid Tie Connector |
| Item Weight | 0.01 Ounces |
| Item dimensions L x W x H | 7.05 x 7.05 x 5.13 inches |
| Manufacturer | Simpson Strong-Tie |
| Manufacturer Part Number | RTC42 |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model Number | RTC42 |
| Mounting Type | Corner Mount |
| UPC | 785577029127 044315325304 |

## Product Details

- **Color:** Silver
- **Brand:** Simpson Strong-Tie
- **Material:** Alloy Steel
- **Item dimensions L x W x H:** 7.05 x 7.05 x 5.13 inches
- **Item Weight:** 0.01 Ounces

## Images

![Simpson Strong-Tie RTC42 RTC 18-Gauge Galvanized Rigid Tie Corner for 2X Joist, 4x4 Post - Image 1](https://m.media-amazon.com/images/I/51SVdiP5y0L.jpg)
![Simpson Strong-Tie RTC42 RTC 18-Gauge Galvanized Rigid Tie Corner for 2X Joist, 4x4 Post - Image 2](https://m.media-amazon.com/images/I/61pnZGs5jEL.jpg)
![Simpson Strong-Tie RTC42 RTC 18-Gauge Galvanized Rigid Tie Corner for 2X Joist, 4x4 Post - Image 3](https://m.media-amazon.com/images/I/61X9s7T6nAL.jpg)
![Simpson Strong-Tie RTC42 RTC 18-Gauge Galvanized Rigid Tie Corner for 2X Joist, 4x4 Post - Image 4](https://m.media-amazon.com/images/I/71RYnjm-6bL.jpg)
![Simpson Strong-Tie RTC42 RTC 18-Gauge Galvanized Rigid Tie Corner for 2X Joist, 4x4 Post - Image 5](https://m.media-amazon.com/images/I/61YGlb0sKrL.jpg)

## Questions & Answers

**Q: Is this actually for a 4x4 post?**
A: Hi Kayla, yes it is for a 4x4 post. We sprayed them black and used them for a fish tank stand and they look great!

**Q: what size lumber does this fit for the sides and corner post?**
A: I used 4x4 for corner posts and 2x4 for sides. RTC24 takes 2x4 for corner and sides. Simple planning should take care of any project designs. I used 8 - RTC42 for 8 corners. 4 for table top and 4 for shelf about a foot off the ground. 4-4x4 posts for corners. I used 2x4 I had left over from deck projects for sides. To be honest this was overkill for my 2.5ftX8ft work bench. I also added heavy duty wheels to push my bench around in the garage.

**Q: can this be mounted to a concrete foundation wall?**
A: Not easily. I love these ties - simple solution that is sturdy with 4x4 posts.  I’m not sure what your set up is but if you were using 3 posts it would work but if you’re mounting to concrete and thinking of removing 2 of the 4x4 - it would not be sturdy

**Q: I paced an order for these this morning for 23.00, then i got an email that my order got cancelled. I did not cancel this order. why did it cancel**
A: Orders can be cancelled by the seller or the buyer. The seller probably could not fulfill the order for some reason.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product!
*by F***9 on December 29, 2025*

I have now built 4 different workbenches using these on the corner posts. They make an exceptionally strong bench!

### ⭐⭐⭐⭐⭐ Build A BENCH IN ONE HOUR
*by D***L on May 22, 2024*

This product is wonderful. It's the second time I have used them. I built a super strong solid workbench in less than an hour!!! Cut four 4"x4"s to length, place the Simpson Strong Tie brackets over the 4x4s, screw them in with your drill, add the 2x4s and bingo D O N E !!! Later if you like, unscrew everything to transport the bench or modify your bench!!! It's a complete no brainer!! David Rodwell Winston Salem, NC

### ⭐⭐⭐⭐⭐ Durable workbench brackets
*by S***6 on April 29, 2026*

These brackets make the most durable wooden workbench you can make. If its worth doing, its worth doing right. These are the brackets you want. Also, get the matching screws - they look great together.

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**Shop now:** [https://www.desertcart.bo/products/21995697-simpson-strong-tie-rtc42-rtc-18-gauge-galvanized-rigid-tie](https://www.desertcart.bo/products/21995697-simpson-strong-tie-rtc42-rtc-18-gauge-galvanized-rigid-tie)

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*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-06-20*