Product Description
The Simpson Strong-Tie RCKW 7.5 in. Kneewall Connector Clip is a heavy 171 mil (7 ga.) rigid connector engineered to resist overturning moment at the base of exterior kneewalls and parapets, as well as interior partial-height walls and overhead ribbon window conditions. Built from 7-gauge steel with a G90 zinc galvanized finish, this kneewall clip features a unique anchor-hole pattern that supports secure anchorage to concrete, structural steel, and CMU - making it a dependable solution across a range of structural wall connection applications. This listing includes a quantity of 10 clips.
Key Features
- Three large anchor holes for flexible anchorage configurations - the center hole supports a one-anchor solution at the edge or center of slab, while the outer holes enable a two-anchor solution for higher-capacity center-of-slab conditions, giving installers options based on load requirements.
- Stiffened flanges on the anchorage legs - improve overturning moment resistance at the connection point, helping the clip perform reliably under the lateral and rotational forces common in kneewall and parapet applications.
- Large-diameter anchor holes sized for 1/2 in. concrete screw anchors and wedge anchors - compatible with the Simpson Strong-Tie Titen HD heavy-duty screw anchor and the Strong-Bolt 2 wedge anchor, ensuring a secure and code-friendly connection to concrete substrates.
- Additional smaller-diameter anchor holes for structural steel attachment - accept #12 self-drilling screws, extending the connector's usefulness beyond concrete to steel-framed assemblies without requiring additional hardware modifications.
- Compatible with CMU substrates via Titen HD or Titen Turbo concrete and masonry screws - broadens the range of applicable base materials, making this clip suitable for mixed-construction environments.
- G90 zinc galvanized coating - provides corrosion resistance in exterior and moisture-exposed conditions, supporting long-term performance in demanding wall base environments.
- Optional RCKWS stiffener nests directly onto the clip - when loads exceed standard capacity, the stiffener's screw holes and anchor holes align precisely with those on the RCKW clip, simplifying installation and boosting the connection's load-carrying ability without reworking the layout.
Why This Product
- Built for the most demanding kneewall and parapet conditions - the 171 mil (7 ga.) steel construction delivers the rigidity required to resist overturning moment in exterior kneewalls, parapets, interior partial-height walls, and overhead ribbon window conditions, covering a wide spectrum of structural wall base scenarios in a single connector family.
- Anchors to three different substrate types without swapping products - the dual anchor-hole pattern accommodates 1/2 in. concrete anchors and wedge anchors for concrete, #12 self-drilling screws for structural steel, and Titen HD or Titen Turbo screws for CMU, reducing the number of connector SKUs a contractor needs to keep on-site.
- Scalable load capacity through an optional add-on stiffener - if project loads exceed what the base clip can handle, the RCKWS stiffener nests directly onto the RCKW clip with perfectly aligned holes, allowing the same installed connector to be upgraded rather than replaced.
- Consistent, professional-grade corrosion protection included - the G90 zinc galvanized finish is applied at the factory, so the clip arrives ready for exterior and exposed-wall applications without requiring field treatment or additional protective coatings.
Specifications
- Model Number: RCKW7.5-R10
- Width: 7 1/2 in.
- Thickness: 171 mil
- Gauge: 7 ga.
- Coating / Finish: Zinc Galvanized, G90
- Material: Steel
- Packaging Quantity: 10
- Country of Origin: United States
Approved Applications
- Resisting overturning moment at the base of exterior kneewalls
- Resisting overturning moment at the base of parapets
- Interior partial-height wall connections
- Overhead ribbon window conditions
- Anchorage to concrete using 1/2-in. concrete screw anchors or wedge anchors
- Anchorage to structural steel using #12 self-drilling screws
- Attachment to CMU using Titen HD or Titen Turbo concrete and masonry screws
What's Included
- 10 x Simpson Strong-Tie RCKW 7.5-in. Kneewall Connector Clips
Note: The RCKW clip and RCKWS stiffener are sold separately. Screws and anchors are not included.
Installation Notes
For greater
Frequently Asked Questions
What types of surfaces can the RCKW7.5 be anchored to?
The RCKW7.5 is designed for anchorage to concrete, structural steel, and CMU. The large-diameter anchor holes accommodate 1/2-in. diameter concrete screw anchors and wedge anchors - such as the Simpson Strong-Tie Titen HD heavy-duty screw anchor and the Strong-Bolt 2 wedge anchor - for concrete applications. The additional smaller-diameter anchor holes allow attachment to structural steel using #12 self-drilling screws. For CMU, attachment can be achieved with the Titen HD or Titen Turbo concrete and masonry screw.
What is the RCKWS stiffener, and is it included with this product?
The RCKWS is a heavy 171 mil (7-gauge) stiffener that nests onto the RCKW clip to provide greater load capacity when the application requires it. Its screw holes and anchor holes align with those in the RCKW clip for straightforward fastener and anchor installation. The RCKWS stiffener is sold separately and is not included in this listing, which contains only the 10 RCKW7.5 clips.
What are the three large anchor hole configurations on the RCKW7.5, and when would each be used?
The RCKW7.5 features three large anchor holes to offer installation flexibility. The center hole is intended for a one-anchor solution at either the edge or the center of the slab. The two outer holes are used together for a two-anchor solution when higher load capacities are needed at the center of the slab. This configuration allows the connector to be adapted to different structural demands without requiring a different product.
What material and finish does the RCKW7.5 use, and what applications is it designed for?
The RCKW7.5 is made from 171 mil (7-gauge) steel and features a G90 zinc galvanized finish for corrosion resistance. It is a rigid connector engineered to resist overturning moment at the base of exterior kneewalls and parapets, as well as interior partial-height walls and overhead ribbon window conditions. The anchorage legs incorporate stiffened flanges to further improve overturning moment resistance in these demanding structural applications.
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