Used for large standoff conditions
The Universal Strut Connector (USC) is a single connector for long stand-off curtain wall connections. It works for both deflection and rigid applications, making design and installation easier.
The Universal Strut Connector (USC) is a high-performance curtain-wall connection system that combines long-reach stand-off capability with a rigid, high-strength clip — all in a single, universal connector. It is designed to support either rigid or deflection connections, giving engineers and contractors maximum flexibility for medium to large stand-off curtain-wall conditions.
The connector comes with proprietary deflection screws for when vertical movement is required, allowing the stud to slide freely while maintaining lateral and axial load transfer. When deflection is not required, the same connector can be installed as a rigid attachment using standard fasteners. With strut lengths up to 24", the Universal Strut Connector eliminates the need for built-up framing or stacked clips — simplifying details while improving performance.
Key Features:
- Installs as either a rigid or deflection connection using the same connector
- Vertical movement up to 2-1/2" (1-1/4" up and 1-1/4" down) when installed as a deflection application
- Proprietary Deflection Screws (included) provide frictionless slip connection
Alternative Products
Material Specifications
Gauge: 14 gauge (68mils)
Design Thickness: 0.0713 inches
Material: 50 ksi
Protective Coating: G90
Product Data & Ordering Information
| Product code | Thickness Mils (Gauge) | Size (in) | Pcs./Ctn. |
|---|---|---|---|
| USC12-68 | 68 (14) | 4 x 1-1/2 x 12 | 10 |
| USC16-68 | 68 (14) | 4 x 1-1/2 x 16 | 10 |
| USC18-68 | 68 (14) | 4 x 1-1/2 x 18 | 10 |
| USC20-68 | 68 (14) | 4 x 1-1/2 x 20 | 10 |
| USC22-68 | 68 (14) | 4 x 1-1/2 x 22 | 10 |
| USC24-68 | 68 (14) | 4 x 1-1/2 x 24 | 10 |
Includes 55 Proprietary Deflection Screws per box
- Clip Express Sales at 866-638-1908 or clipexpress@clarkdietrich.com
- Technical Support at 888-437-3244 or support@clarkdietrich.com
Installation Instructions
For a Rigid Connection:
Connections to the building can be made with screws, powder-actuated fasteners, drill-in concrete anchors or welding. Mechanical fasteners shall be equally spaced along the 1-1/2" flange. The strut must engage the building structure a minimum of 4". When using tabulated allowable loads, connections to the building structure must be made according to the table notes. Connection to cold-formed steel framing members using #10-16 HWH minimum self-drilling screws through the provided clip holes, with the number of fasteners in accordance with the load tables.
For a Deflection Connection:
Connections to the building can be made with screws, powder-actuated fasteners, drill-in concrete anchors or welding. Mechanical fasteners shall be equally spaced along the 1-1/2" flange. The strut must engage the building structure a minimum of 4". When using tabulated allowable loads, connections to the building structure must be made according to the table notes. Two or three Proprietary Deflection screws are used to attach the strut to the cold-formed steel framing. Screws shall be driven through the slotted holes and positioned to allow for the appropriate building deflection.
Proprietary Deflection Screws
Many of the ClarkDietrich deflection clips include our Proprietary Deflection Screws that has been specifically designed to provide friction-free deflection. These fasteners eliminate drag, binding or resistance that can often occur with common fasteners.
Code Approvals & Performance Standards
- AISI S100-16 (2020) w/S2-20 North American Specification for the Design of Cold-Formed Steel Structural Members
- IAPMO ER-0731 Evaluation Report for Rigid Connectors.
- USC20 and USC22 not included in report
- SDS For ASTM A1003 Steel Framing Products For Interior Framing, Exterior Framing and Clips/Accessories
CAD Details
Note: to view all of ClarkDietrich's CAD details, visit the CAD Details Library.
PRoduct submittal SHeets
Click the below Product Code to view Submittal/Tech Datasheet.
| Product code | Description |
|---|---|
| USC12-68 | 12" Universal Strut Connector |
| USC16-68 | 16" Universal Strut Connector |
| USC18-68 | 18" Universal Strut Connector |
| USC20-68 | 20" Universal Strut Connector |
| USC22-68 | 22" Universal Strut Connector |
| USC24-68 | 24" Universal Strut Connector |
ClarkDietrich SubmittalPro®
Submittal sheets for the exact product you're looking for can be created by using ClarkDietrich's SubmittalPro® Product Submittal System.
- Clip Express Sales at 866-638-1908 or clipexpress@clarkdietrich.com
- Technical Support at 888-437-3244 or support@clarkdietrich.com