Black Rectangular Tube with Straight Notch

For structural and mechanical applications requiring precise component attachment and modular assembly, our Black Rectangular Tube with Straight Notch offers an ideal solution. This profile features a clean, continuous vertical slot machined along its length, providing a versatile channel for mounting bolts, slides, or fixtures. It is commonly specified in framing systems, machine guarding, support structures, and display units where adjustability and a clean, finished appearance are paramount. You can learn more about our slotted tubing options, including the Black Rectangular Tube with Vertical Slot, the Linear Slot Black Rectangular Steel Tube, the Black Rectangular Pipe with Straight Opening, and the Vertical Slotted Black Rectangular Hollow Tube. The straight notch design allows for infinite positioning along the tube's axis, facilitating easy alignment and secure fastening without the need for pre-drilled holes, thereby streamlining installation and future modifications.


When you select the Black Rectangular Tube with Straight Notch, you are investing in a component engineered for both functionality and durability. The tube is fabricated from high-grade steel, ensuring excellent load-bearing capacity and structural integrity. A uniform black finish, typically a powder coat or durable paint, is applied to provide superior corrosion resistance and a consistent, professional aesthetic that integrates seamlessly into both industrial and commercial environments. This finish also helps protect the material from scratches and wear during handling and use.

Black Rectangular Tube with Straight Notch: Technical Specifications

  • Material: High-Strength Low-Alloy (HSLA) Steel
  • Standard Finish: Matte Black Powder Coat
  • Slot Type: Continuous Straight (Vertical) Notch
  • Fabrication: Cold-formed and Electric Resistance Welded (ERW)
  • Primary Applications: Structural Framing, Machine Guards, Workstations, Display Systems, Modular Enclosures

The following table details the standard available dimensions and tolerances for the Black Rectangular Tube with Straight Notch. Custom sizes and slot configurations can be produced upon request to meet specific project requirements.

Outer Dimensions (H x W) Wall Thickness Standard Lengths Slot Width Standard Tolerance
1" x 2" (25mm x 50mm) 0.065" (1.65mm) 10ft, 12ft, 20ft 0.31" (8mm) ±0.005" on dimensions
1.5" x 3" (38mm x 75mm) 0.083" (2.1mm) 10ft, 12ft, 20ft 0.31" (8mm) ±0.005" on dimensions
2" x 4" (50mm x 100mm) 0.083" (2.1mm) 10ft, 12ft, 20ft 0.39" (10mm) ±0.008" on dimensions
3" x 6" (75mm x 150mm) 0.120" (3.0mm) 10ft, 12ft, 20ft 0.47" (12mm) ±0.010" on dimensions

Our manufacturing process ensures that each Black Rectangular Tube with Straight Notch meets strict quality standards for straightness, slot alignment, and finish consistency. The straight notch is precision-machined to provide smooth edges and accurate dimensions, allowing for compatibility with standard T-slot nuts and mounting hardware. For specific load ratings, chemical composition data, or additional technical drawings, please contact our engineering support team.

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