--- 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: "€ 47.77" currency: EUR in_stock: true url: https://www.desertcart.pt/products/21995697-simpson-strong-tie-rtc42-rtc-18-gauge-galvanized-rigid-tie store_origin: PT region: Portugal --- # precise 90° rigid corner 18-gauge galvanized steel fits 4x4 posts & 2x joists Simpson Strong-Tie RTC42 RTC 18-Gauge Galvanized Rigid Tie Corner for 2X Joist, 4x4 Post **Brand:** simpson strong-tie **Price:** € 47.77 **Availability:** ✅ In Stock ## Summary > 🔧 Build stronger, faster, smarter — corner your project like a pro! ## 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?** € 47.77 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/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 - • **Effortless Installation:** Screw in place quickly—build or modify your project in under an hour. - • **Rock-Solid 90° Connection:** Eliminate angled cuts and weak joints with precision-engineered rigidity. - • **Galvanized Steel Durability:** Resists corrosion for long-lasting structural integrity in any environment. - • **Trusted by Pros & DIYers Alike:** Join thousands who rely on Simpson Strong-Tie for unbeatable strength and reliability. - • **Universal Fit for 4x4 & 2x Joists:** Designed to perfectly secure standard lumber sizes without guesswork. ## Overview The Simpson Strong-Tie RTC42 is an 18-gauge galvanized rigid tie corner connector engineered for 4x4 posts and 2x joists. It provides a robust 90° connection without the need for angled cuts, ensuring superior strength and corrosion resistance. Ideal for quick assembly and modification, this alloy steel bracket is a go-to choice for professionals and DIY enthusiasts seeking durable, reliable corner reinforcement. ## 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 ## 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 | #344,492 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3,944 in Hardware Brackets | | Brand Name | Simpson Strong-Tie | | Color | Silver | | Customer Reviews | 4.6 4.6 out of 5 stars (162) | | 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 | | Manufacturer | Simpson Strong-Tie | | Manufacturer Part Number | RTC42 | | Material Type | Alloy Steel | | Model Number | RTC42 | | Mounting Type | Corner Mount | | UPC | 785577029127 044315325304 | ## Product Details - **Brand:** Simpson Strong-Tie - **Color:** Silver - **Item Weight:** 0.01 Ounces - **Item dimensions L x W x H:** 7.05 x 7.05 x 5.13 inches - **Material:** Alloy Steel ## 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) ## Available Options This product comes in different **Size** options. ## 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. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/21995697-simpson-strong-tie-rtc42-rtc-18-gauge-galvanized-rigid-tie](https://www.desertcart.pt/products/21995697-simpson-strong-tie-rtc42-rtc-18-gauge-galvanized-rigid-tie) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-07-10*