Eaton B-Line Flat Three Hole C...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$59.42
$6.23
Eaton B-Line series strut fittings and accessories, 3.5" Height, 3.5" Length, 1.62" Width, .56lbs, Steel, Flat three hole corner plate, Thickness 1/4

Eaton B-Line Flat Three Hole Corner Plate 3.5 x 3.5 x 1.62 Inch Steel Electro-Plated 1/4 Inch Thickness

(No reviews yet) Write a Review

Model: B140ZN
Selected Model is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$59.42
$6.23
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Eaton B-Line Flat Three Hole Corner Plate

Professional Strut Channel Corner Connection Solution

The Eaton B-Line Flat Three Hole Corner Plate delivers exceptional structural support and installation efficiency for 90-degree strut channel connections and corner reinforcement applications. This steel corner plate with electro-plated finish provides reliable structural connection solutions designed for professional electricians, mechanical contractors, and facility installers, offering the proven strength and versatile mounting capabilities that professionals trust from the industry leader in strut channel systems.

Professional Features & Benefits

Structural Performance Excellence

  • Steel Construction with 1/4 Inch Thickness - Provides exceptional structural integrity and load-bearing capacity for demanding commercial and industrial mounting applications
  • Electro-Plated Finish Protection - Delivers superior corrosion resistance and extended service life in challenging environmental conditions
  • Precision 3.5 x 3.5 x 1.62 Inch Dimensions - Engineered for optimal fit and structural performance with standard strut channel systems
  • Lightweight 0.56 Pound Design - Reduces installation fatigue while maintaining structural strength for professional mounting solutions

Installation Efficiency

  • Three Hole Pattern Configuration - Enables secure multi-point fastening for enhanced connection reliability and structural stability
  • Flat Plate Design - Simplifies installation procedures and provides flush mounting capability for clean professional installations
  • Universal Compatibility - Works seamlessly with standard B-Line strut channel systems and mounting hardware

Professional Quality Assurance

  • B-Line Manufacturing Standards - Meets rigorous quality control specifications for consistent performance and reliability
  • Precision Engineering - Manufactured to exact tolerances for proper fit and optimal structural performance

Technical Specifications

Dimensions: 3.5 inches height x 3.5 inches length x 1.62 inches width, Weight: 0.56 pounds, Material: Steel construction, Material Gauge: 1/4 inch thickness, Finish: Electro-plated coating, Design: Flat three hole corner plate configuration, Product Type: Corner connection plate for strut channel systems

Installation & Usage

  1. Position corner plate at desired 90-degree strut channel intersection point
  2. Align three mounting holes with corresponding strut channel slots or mounting points
  3. Insert appropriate fasteners through plate holes into strut channel connections
  4. Tighten fasteners to specified torque requirements for secure structural connection
  5. Verify proper alignment and connection integrity before applying structural loads
  6. Inspect installation for proper fit and secure fastening completion

Professional Applications

Ideal for:

  • Electrical Conduit Support Systems - Corner reinforcement for conduit runs and electrical distribution mounting frameworks
  • Mechanical Equipment Mounting - Structural connections for HVAC equipment, pumps, and mechanical system support structures
  • Structural Framing Applications - Corner reinforcement for equipment racks, support frames, and industrial mounting systems
  • Cable Management Systems - Corner connections for cable tray supports and telecommunications infrastructure mounting
  • Seismic Bracing Systems - Structural corner reinforcement for earthquake-resistant mounting and bracing applications
  • Industrial Support Structures - Corner connections for manufacturing equipment mounting and process system supports
  • Commercial Installation Projects - Professional corner reinforcement for retail, office, and institutional facility mounting systems
  • Maintenance and Retrofit Applications - Corner strengthening for existing strut channel systems and structural upgrades

Electro-Plated Finish Advantage

The electro-plated finish provides enhanced corrosion protection compared to standard steel, making this corner plate ideal for indoor commercial and light industrial applications where moisture resistance and long-term durability are essential for professional installations.

Why Choose B-Line Quality?

B-Line's decades of structural support innovation and manufacturing excellence ensure this corner plate delivers the reliability and performance that professional contractors, electricians, and facility managers trust. With industry-leading quality standards and comprehensive compatibility with strut channel systems, B-Line provides the structural integrity and installation confidence that professionals demand for critical mounting applications worldwide.

Manufacturer Resources

Product Specs

Certifications:
Not Applicable
Material Gauge:
1/4"
Product Height:
3.5 in
Product Length Depth:
3.5 in
Product Weight:
.56 lb
Product Width:
1.62 in
Product Type:
Flat three hole corner plate
Department:
Electrical
Product Group:
Panels & Plates
Product Subgroup:
Plates
Product Finish:
Electro-plated
Product Details:
Flat three hole corner plate
Product Material:
Steel

B-LINE B140ZN – Frequently Asked Questions

1) Will the B-Line B140ZN corner plate work for a 90 degree strut channel connection?
That is exactly what the B140ZN is built for. It is a flat three hole corner plate that sits over the intersection where two runs of strut meet at a corner and ties them together through three bolted points. Because it is flat rather than angled, it lays against the face of the channel and mounts flush, so it reinforces a corner in the same plane rather than turning a run 90 degrees out of plane. If you need to make a connection between two channels on different planes, a flat plate is the wrong shape for it, and you want an angle fitting instead.
2) What size is the B-Line B140ZN corner plate, and will it fit across a standard strut run?
The B140ZN measures 3.5 x 3.5 x 1.62 inches. The 1.62 inch figure is the width that lands on the channel face, so it sits within the footprint of standard 1-5/8 inch strut without overhanging the edges. Lay the plate over the corner and check that the three holes line up with the slots or holes in your channel before you bolt it up.
3) Do bolts and channel nuts come with the B-Line B140ZN corner plate?
The B140ZN ships as the plate only. Three holes means three fasteners, and you supply them: channel nuts and hex head bolts sized to your strut, in a finish that matches the plate so you are not mixing plated and bare steel in the same joint. Order the nuts and bolts on the same line as the plates so the job is not held up for hardware.
4) Is the electro-plated finish on this B-Line corner plate okay for outdoor or wet locations?
Electro-plated zinc is an indoor and light industrial finish. It resists the moisture you get in a mechanical room, a parking structure interior or a warehouse, but it is not the finish to specify for direct weather exposure, a coastal site, or a corrosive process environment. For those, step up to a hot dip galvanized or stainless strut fitting in the same three hole corner pattern.
5) How many B140ZN plates do I need per corner connection?
One plate makes a single sided corner connection, with the three holes bolted through into the channel. For a joint carrying load in both directions, or for seismic bracing where the corner sees reversing loads, installers commonly plate both faces of the intersection, which doubles the count. Work out your corner count first, then decide single or double sided, and buy fasteners in multiples of three per plate.
6) What is the manufacturer part number for the B-Line flat three hole corner plate?
The part number is B140ZN, from Eaton B-Line. The ZN suffix on B-Line strut fittings marks the electro-plated zinc finish, so if a drawing calls for a different finish on the same fitting, you are looking for the same base number with a different suffix.
7) Can I use a flat corner plate like the B140ZN to brace an existing strut frame that has started to rack?
Yes, that is a common retrofit for it. Because the plate is flat and mounts on the face of the channel, you can add it to a corner that is already built without taking the frame apart, which you cannot do with a fitting that has to be captured inside the joint. Three 1/4 inch thick steel bolted points at the corner take the racking out of the connection. You will need to get a channel nut into the strut at each hole location, so confirm you have open slot access at that corner before you order.
How fast can I get the B-LINE B140ZN delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the B-LINE B140ZN come with a warranty?
Absolutely. The B-LINE B140ZN is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the B-LINE B140ZN?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the B-LINE B140ZN from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!