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Simpson Strong-Tie RCKW3 3 in. 7-Gauge G90 Galvanized Rigid Kneewall Connector, Carton of 10 – RCKW3-R10
Regular price $83.95Orders start at $399 — combine any items to reach the minimum. Learn more
Simpson Strong-Tie RCKW3 3 in. 7-Gauge G90 Galvanized Rigid Kneewall Connector, Carton of 10
The Simpson Strong-Tie RCKW3 is a rigid kneewall connector developed to resist overturning moment at the base of exterior kneewalls, parapets and interior partial-height walls. Made from heavy 171 mil (7 ga.) G90 galvanized steel, it stands 3-1/2 in. tall and features an anchor-hole pattern for concrete and structural steel. This carton contains 10 clips; screws and anchors are sold separately.
Key Features:
- Overturning resistance: Rigid connector designed to resist overturning moment at the base of kneewalls, parapets and partial-height walls.
- Dual anchor option: Unique anchor-hole pattern permits anchorage to both concrete and structural steel.
- Heavy 7-gauge steel: Heavy 171 mil (7 ga.) galvanized steel construction for demanding connections.
- Titen HD compatible: Larger anchor hole accommodates 1/2 in.-diameter concrete screws such as the Simpson Strong-Tie Titen HD.
- G90 galvanized: G90 galvanized finish provides corrosion resistance for standard environments.
- 10-count carton: Carton of 10 connectors supports multiple kneewall locations per order.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Simpson Strong-Tie |
| Manufacturer model | RCKW3-R10 |
| Sell unit | Carton of 10 connectors |
| Material | Galvanized steel |
| Color / finish | G90 galvanized |
| Nominal size | 3 in. kneewall connector |
| Height | 3-1/2 in. |
| Wire gauge | 7 ga (171 mil) |
| Pack quantity | 10 connectors per carton |
| Anchor compatibility | Larger hole fits 1/2 in.-diameter concrete screws such as Simpson Strong-Tie Titen HD |
| Required screws | #12-14 screws per specified screw patterns to achieve tabulated load values |
| Intended use | Resisting overturning moment at the base of exterior kneewalls, parapets and interior partial-height walls |
Fit and Compatibility:
Works with the Simpson Strong-Tie RCKW system: the RCKWS stiffener nests onto the RCKW clip, but the clip and stiffener are sold separately. Achieve tabulated loads only with all specified #12-14 screws and anchors per the published screw and anchor patterns; the larger anchor hole accepts 1/2 in. Titen HD concrete screws. Cold-formed steel framing connector from the Simpson Strong-Tie connector line.
Frequently Asked Questions (FAQ):
Q: What is included in the carton?
A: The carton contains 10 RCKW3 kneewall connector clips; the RCKWS stiffener, screws and anchors are sold separately.
Q: What does this connector do?
A: It resists overturning moment at the base of exterior kneewalls and parapets as well as interior partial-height walls.
Q: What fasteners are required?
A: Use all specified #12-14 screws per the published screw patterns to achieve tabulated load values, and use the specified anchors for concrete or structural steel.
Q: What anchors fit the large hole?
A: The larger anchor hole is designed to accommodate 1/2 in.-diameter concrete screws such as the Simpson Strong-Tie Titen HD.
Q: What material is it made of?
A: It is heavy 171 mil (7 ga.) steel with a G90 galvanized finish.
Q: Does it need the stiffener?
A: The RCKWS stiffener is optional but nests onto the clip with aligned holes; when used, secure it with specified screws at least 1 in. long with a minimum of 3 exposed threads.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
The RCKW3 is the right choice where a kneewall or parapet sees overturning loads that a standard angle clip cannot handle; pair it with the RCKWS stiffener for higher capacity and with Titen HD anchors into concrete. Install every screw and anchor in the published pattern, since tabulated load values depend on using all specified fasteners. Verify connector sizing and fastener schedule against the current Simpson Strong-Tie load tables and your project drawings.
Structural connections must follow the manufacturer's load tables, specified fasteners and local building codes; consult a qualified engineer or inspector when connecting to concrete or structural steel.
Anchor your kneewalls with the Simpson Strong-Tie RCKW3 rigid kneewall connector, carton of 10.
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