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The Light Source

The Light Source Monstro-Coupler, 3" Pipe (OD 3.5"), Counter Sunk, Black Anodized

$205.00

The Monstro-Coupler for 3.5” OD pipe offers secure, countersunk mounting for professional rigging applications.

 Built from high-strength aluminum and finished in black anodized coating, it provides a sleek and durable connection point.

 Its countersunk bolt design ensures a flush, low-profile finish ideal for truss and lighting systems.

View Product Features

  • For 3.5" OD pipes and trusses
  • Countersunk design for flush mounting
  • Black anodized aluminum body
  • Strong and lightweight construction
  • Provides secure, professional connection
  • Ideal for rigging and stage applications
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About the The Light Source Monstro-Coupler, 3" Pipe (OD 3.5"), Counter Sunk, Black Anodized

The Light Source Monstro-Coupler in a Black Anodized finish with counter-sunk bolt holes is a premium, heavy-duty structural connector designed for both exceptional strength and a refined aesthetic in visible installations. Engineered to join two sections of large-diameter 3-inch nominal schedule 40 pipe, this coupler is the cornerstone for building robust frameworks capable of supporting lighting trusses, video walls, scenic elements, and architectural features. The black anodized coating provides a durable, corrosion-resistant surface that maintains a sleek, professional appearance, making it suitable for applications where the hardware is part of the visual design, such as in high-end retail displays, modern architectural interiors, or permanent stage installations.

The defining "counter sunk" feature refers to the machining of the bolt holes so that the heads of the mounting bolts sit flush with or below the surface of the coupler body when fully tightened. This design serves two critical purposes: first, it creates a smooth, snag-free exterior that enhances safety by eliminating protruding hardware that could catch cables or clothing; second, it contributes to the streamlined, integrated look of the finished structure. The coupler utilizes multiple high-strength bolts to apply uniform clamping force around the entire 3.5-inch outer diameter of the pipe, creating a connection that is as rigid as a welded joint but remains completely demountable and reusable.

This version of the Monstro-Coupler is selected for projects where visual cohesion and detail finishing are as important as structural integrity. It is frequently used by scenic designers, architects, and exhibit builders who require the raw strength of industrial-grade hardware but cannot compromise on a clean, intentional visual language. The combination of massive load-bearing capability, the safety of flush-mounted hardware, and a durable dark finish makes this component an ideal choice for constructing everything from art installations and trade show monuments to permanent concert venue infrastructures where both form and function are paramount.

Key Features

  • For 3.5" OD pipes and trusses
  • Countersunk design for flush mounting
  • Black anodized aluminum body
  • Strong and lightweight construction
  • Provides secure, professional connection
  • Ideal for rigging and stage applications

The Light Source Monstro-Coupler, 3" Pipe (OD 3.5"), Counter Sunk, Black Anodized Specs

General Specification
Product Name
Monstro-Coupler
Pipe Compatibility
3" Nominal Schedule 40
Special Feature
Counter Sunk Bolt Holes
Physical & Material Properties
Finish
Black Anodized
Body Material
Aluminum Alloy
Target Pipe Outer Diameter (OD)
3.5 Inches
Mechanical Design
Clamping Method
Multi-Bolt Compression Ring
Bolt Head Profile
Flush Mount (Counter Sunk)
Application Context
Primary Use
Heavy-Duty Structural Pipe Framing
Installation Aesthetic
Clean, Finished, Visually Integrated

Key Features

  • For 3.5" OD pipes and trusses
  • Countersunk design for flush mounting
  • Black anodized aluminum body
  • Strong and lightweight construction
  • Provides secure, professional connection
  • Ideal for rigging and stage applications
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