1. Introduction
This manual provides essential information for the proper installation, use, and maintenance of the Cooper B-Line B133-ZN Flat Tee Plate. Designed for robust structural connections in various applications, this steel plate ensures secure and reliable mounting.
2. Safety Information
Always adhere to local electrical codes and safety regulations during installation. Ensure power is disconnected before working on electrical systems. Use appropriate personal protective equipment (PPE) such as gloves and eye protection. Improper installation can lead to injury or damage.
3. Product Overview
The Cooper B-Line B133-ZN is a flat tee plate constructed from durable alloy steel, designed for connecting strut channels or other structural components at a 90-degree angle. It features four 9/16 inch holes for secure mounting.

Figure 3.1: Front view of the B133-ZN Flat Tee Plate, showing its T-shape and four mounting holes.

Figure 3.2: Top view of the B133-ZN Flat Tee Plate, illustrating the arrangement of the four 9/16 inch mounting holes.
4. Installation and Usage
The B133-ZN Flat Tee Plate is used to create strong, perpendicular connections between strut channels or other compatible structural elements. Its design allows for versatile mounting configurations.
4.1. Required Tools and Materials
- Appropriate fasteners (bolts, nuts, washers) compatible with 9/16 inch holes.
- Wrenches or power tools for tightening fasteners.
- Measuring tape and marking tools for precise alignment.
- Personal Protective Equipment (PPE).
4.2. Installation Steps
- Preparation: Ensure all surfaces are clean and free from obstructions. Verify that the strut channels or components to be joined are correctly aligned.
- Positioning: Place the B133-ZN Flat Tee Plate against the strut channels or components where the perpendicular connection is desired. The T-shape allows one section to be connected to the "stem" and another to the "crossbar".
- Fastening: Insert appropriate bolts through the 9/16 inch holes of the plate and the corresponding holes in the strut channels. Secure with nuts and washers.
- Tightening: Gradually tighten all fasteners evenly to ensure a secure and stable connection. Avoid over-tightening, which can strip threads or deform components.
- Verification: After tightening, visually inspect the connection to ensure it is rigid and properly aligned.
5. Maintenance
The Cooper B-Line B133-ZN Flat Tee Plate is designed for long-term durability with minimal maintenance. However, periodic inspection is recommended to ensure continued performance.
- Visual Inspection: Regularly check the plate and its connections for any signs of corrosion, rust, deformation, or damage.
- Fastener Check: Verify that all bolts and nuts remain securely tightened. Re-tighten if any looseness is detected.
- Cleaning: If installed in a dusty or corrosive environment, periodically clean the plate to prevent buildup that could accelerate degradation. Use a damp cloth and mild detergent if necessary, then dry thoroughly.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Connection feels loose or unstable. | Fasteners are not sufficiently tightened or have loosened over time. | Re-tighten all bolts and nuts to the recommended torque. Ensure proper washers are used. |
| Visible rust or corrosion on the plate. | Exposure to moisture or corrosive agents; protective coating compromised. | Clean the affected area. If corrosion is severe, consider replacement. Apply a rust-inhibiting coating if appropriate for the environment. |
| Plate or connected components are misaligned. | Improper initial installation or shifting due to external forces. | Loosen fasteners, re-align components, and re-tighten. Ensure the structure is level and plumb. |
7. Specifications
- Model: B133-ZN
- Brand: Cooper B-Line
- Material: Alloy Steel
- Hole Configuration: (4) 9/16 Inch Holes
- Item Weight: 1 Pound (approx.)
- Part Number: B133ZN
- UPC: 781011503536
8. Warranty and Support
For specific warranty information, please refer to the official Cooper B-Line warranty policy available on their website or contact their customer support. General product support can be obtained through the manufacturer's official channels.
Manufacturer: COOPER B-LINE
Website: www.cooperindustries.com
For technical assistance or inquiries, please contact Cooper B-Line customer service.





