The Simpson Strong-Tie DTT1SS-KT Stainless-Steel Deck Tension Tie Kit is a complete, hardware-included connector solution engineered for secure deck-to-house ledger connections and guardrail post anchoring on single or double 2x framing members. Built from 14-gauge Type 316 stainless steel, this deck tension tie kit is purpose-designed for coastal environments, high-moisture settings, and applications involving treated lumber where corrosion resistance is critical. Each kit contains 4 DTT1SS connectors along with all required fasteners, giving builders and contractors everything needed to achieve stronger, safer deck attachments without the need to access interior floor joists.

Key Features

• Provides secure deck attachments without requiring access to interior floor joists - eliminates disruptive interior work during deck installation or retrofitting, saving significant labor time on both new builds and existing deck upgrades.
• Fastens to the narrow or wide face of a single 2x member for versatile installation - gives installers flexibility to orient the connector based on framing layout, reducing the need for additional hardware or custom solutions.
• Ties the guardrail post into deck framing - creates a structurally sound post-to-frame connection that contributes to overall deck stability and safety compliance.
• Stronger and safer than nails, lag screws, or bolts - delivers a higher-performing lateral load connection at the ledger, reducing the risk of deck separation and helping prevent a common type of deck failure.
• Ties the deck into the house for a stronger, safer ledger connection - directly addresses the most critical point of deck attachment, improving the structural integrity of the deck-to-house interface.
• Helps prevent a common type of deck failure - engineered specifically to resist the lateral forces that cause decks to pull away from structures, adding a critical layer of protection for occupants.
• Made from 14-gauge Type 316 stainless steel for superior corrosion resistance in coastal, high-moisture, or treated-wood applications - ensures long-term connector integrity in environments where standard steel hardware would degrade prematurely.
• Kit contains 4 DTT1SS connectors per kit - provides enough hardware to complete multiple connection points in a single purchase, streamlining procurement for deck construction projects.

Why This Product

• Complete fastener kit included - the DTT1SS-KT comes with all required Strong-Drive SD Connector SS screws and SDWH Timber-Hex SS screws with stainless-steel washers, so installers do not need to source additional hardware separately.
• Type 316 stainless-steel construction means this connector is a purpose-built solution for treated lumber and high-moisture conditions where corrosion resistance is a non-negotiable requirement.
• Dual-face installation compatibility - the ability to fasten to either the narrow or wide face of a single 2x member means this tie adapts to a wider range of framing configurations without requiring special modifications.
• Less invasive deck attachment approach - by securing the deck-to-house connection without accessing interior floor joists, the DTT1SS-KT simplifies both new deck construction and the retrofitting of existing decks to current code standards.

Specifications

• Brand: Simpson Strong-Tie
• Part Number: DTT1SSKT
• Material: Stainless Steel
• Finish: Stainless Steel
• Gauge: 14
• Member Size: Single or double 2x
• Product Class: Deck Tie
• Country of Origin: United States

What's Included

• 4 DTT1SS connectors
• 4 Strong-Drive SDWH Timber-Hex SS screws (SDWH27800SS) for the deck-to-house lateral load connection
• 4 3/8 in. Type 316 stainless-steel washers
• 26 #9 x 1 1/2 in. Strong-Drive SD Connector SS screws (SD9112SS) for anchoring the DTT1SS to the deck joist

Install With

• Fastens to the narrow or wide face of a single 2x with Simpson Strong-Tie Strong-Drive SD Connector SS screws (SD9112SS) or nails
• Accepts a 3/8 in. machine bolt, anchor bolt, or lag screw (washer required) for the primary lateral load connection
• Can also be installed with the Strong-Drive SDWH Timber-Hex SS screw (SDWH27800SS) with an integral washer - Strong-Drive screws are included in this kit