Product Description

Conical Truss Coupler | Standard Double-Sided Spigot Connector (EVT290A-CON)

The EVT290A-CON Conical Truss Coupler is the industry-standard double-sided connector designed for joining 290 mm square truss segments. Often referred to by riggers as an “Egg,” “Spigot,” or “Truss Connector,” this essential component creates the core link between truss sticks, ensuring a seamless, rigid, and vibration-free connection.

Function & Compatibility:

Precision-machined from high-grade Aluminum Alloy 6061-T6, this coupler fits into the conical receivers of two adjoining truss sections. It is secured using the included Steel Truss Pins and R-Clips. This system allows for rapid assembly without tools. It is fully F34 Compatible, meaning it serves as a perfect replacement or expansion part for EVT290S and most major 290mm square truss brands.

Material Specifications:

• Connector Body: Precision-machined from Aluminum Alloy 6061-T6 for high mechanical strength and fatigue resistance.
• Coupler Pin: Manufactured from Steel Grade S45C, ensuring high tensile strength and shear resistance.
• Cotter Pin (R-Clip): Made from durable Spring Wire for reliable retention and locking.

Key Features

• Double-Sided Design: Standard linear connector joins two truss receivers (female ends) end-to-end.
• Compatibility: F34 Compatible design connects seamlessly with standard 290mm square truss straights and corners.
• Complete Connection Kit: Includes 1x Conical Coupler, 2x Truss Pins, and 2x R-Clips (everything needed for one connection point).
• Vibration-Free Fit: Precision tapering eliminates rattle and ensures structural alignment under load.
• Premium Alloy: 6061-T6 Aluminum construction ensures durability and corrosion resistance.
• Essential Spare: A critical inventory item for replacing lost or damaged connectors during load-ins.

Designed by Evolve Truss, this coupler is fully compatible with the entire EVT290 series and allows for seamless integration with existing standard truss inventories.

⚠️ Safety & Engineering Notice

❗ Critical Assembly Information:

• Load Transfer: The coupler is the primary load-transfer point between truss sticks. Never use a damaged, dented, or deformed coupler, as this compromises the entire span.
• Locking Check: Always ensure both pins are fully inserted and locked with R-clips before raising the structure.

Important Guidelines for Safe Use:

• Inspect couplers for “egging” (elongation of the pin holes) or burrs before use.
• Do not force the coupler into place with excessive hammering; a proper fit should be snug but seat fully with light tapping.
• Do not mix truss components from different manufacturers if the tolerance varies.
• All truss structures must be reviewed by a qualified rigger or engineer.

⚠️ Compatibility Warning

Crucial Steps for Safe Assembly:

• Brand Mixing: While F34 compatible, always test-fit connections with other brands on the ground to ensure pin alignment is exact.
• Wear & Tear: Discard couplers that show signs of significant wear or impact damage.

Why Choose Truss Genius?

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• Authorized Dealer: Direct partnerships with trusted truss manufacturers.
• Expert Guidance: Real-world experience in staging, rigging, and system planning.

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Experience the Truss Genius Difference

Trusted by staging professionals nationwide, Truss Genius delivers certified components, expert guidance, and a seamless purchasing experience.

Contact us today to restock your EVT290A-CON couplers and keep your rig ready for the next show.