EVT290A BCON half connector for truss base plates with M10 threaded insert
EVT290A BCON half connector with M10 threaded insert, coupler pin, and cotter pin
EVT290A BCON half connector for truss base plates with M10 threaded insert
EVT290A BCON half connector with M10 threaded insert, coupler pin, and cotter pin

EVT290A-BCON

Original price was: $16.95.Current price is: $11.00.

EVT290A-BCON — Half Conical Connector with M10 Thread for Truss Base Plates

Dimensions & Specs
Thread Specification: M10 x 1.5 Pitch
Bolt Length: 20mm
Compatibility: Standard 290mm Truss Conical Connection points

Construction
Material Type: Aluminum Alloy 6061-T6
Function: Used to attach truss segments to aluminum or steel base plates

Finish & Features
Included: Conical Half Connector, Steel Coupler Pin, Cotter Pin (R-Clip), and M10 x 20mm Bolt
Weight: 0.28 lb (0.13 kg)

In stock

SKU: EVT290A-BCON Categories: , ,

EVT290S Truss Systems Knowledge Center

EVT290A-BCON Half Conical Connector.
For Attaching 290 mm Truss to a Base Plate.

The EVT290A-BCON is a half conical connector used to attach a standard 290 mm truss segment to a base plate. It bolts to an aluminum, steel, or custom-material base plate using an M10 bolt, and receives the truss through the same coupler-pin and r-clip connection used throughout the EVT290I, EVT290T, EVT290S, and F34-format truss systems. It is the standard hardware for building truss pillars, totems, and arch bases from a base plate up.

Product Facts

Model / SKUEVT290A-BCON
Product TypeHalf Conical Connector
Base Plate MaterialAluminum, Steel, or Custom Material
Bolt Torque Spec11 ft-lb
MaterialAluminum Alloy EN AW-6061 T6
Component Weight0.28 lb / 0.13 kg
M10Thread Specification
11 ft-lbBolt Torque Spec
6 mmHex Key Size
290 mmTruss Profile
1 SetHardware Included

Product Overview

Attach a Standard Truss Connection to an Aluminum, Steel, or Custom-Material Base Plate.

The EVT290A-BCON's primary job is connecting standard 290 mm truss to a base plate. The truss side is a standard half conical coupler, secured with a coupler-pin and r-clip exactly like any other conical joint in the system. The base plate side is a flat, machined face fastened down with an included M10 bolt, torqued to 11 ft-lb with a 6 mm hex key. The bolt is simply how the connector is fastened to the base plate — it plays no part in the truss connection itself.

Base Plate Attachment
Bolts down to an aluminum, steel, or custom-material base plate, giving a truss tower, totem, or arch a solid starting point.
Standard Conical Truss Side
The truss connects through the same conical coupler-pin and r-clip joint used throughout the truss system, not through the bolt.
Aluminum Alloy 6061-T6
The connector body is machined from Aluminum Alloy 6061-T6 for durability under repeated assembly and disassembly.
F34 Compatible
Designed for compatible integration with EVT290I, EVT290T, EVT290S, and most standard 290 mm truss systems.

Common Applications

Build a Truss Tower, Totem, or Arch Directly Off a Base Plate.

The EVT290A-BCON is the connection used wherever a standard truss structure needs to start from a base plate instead of another truss segment. It works with aluminum, steel, or custom-material base plates, so it fits whatever base-plate material a project already uses. Confirm base plate size, ballast, bolt torque, and complete support requirements as part of the approved truss system.

01
Truss Pillars and Totems
Create a vertical truss support originating from a base plate for signage, lighting, or display towers.
02
Arch and Portal Bases
Provide the base-plate connection point for a truss arch, portal, or gateway structure.
03
Custom Base Plate Materials
Fasten to steel or custom-material base plates in addition to aluminum, wherever project materials call for it.
04
Replacement Hardware
Serve as a standard replacement part for existing base-plate assemblies and custom rigging points.

Included Connection Hardware

One Complete Kit for One Base Plate Connection.

The EVT290A-BCON includes one complete hardware kit: 1 Half Coupler, 1 Coupler-Pin, 1 R-Clip, and 1 M10 x 20 mm Bolt. The coupler-pin and r-clip secure the truss connection; the M10 bolt secures the connector to the base plate. Confirm the current product package and connection requirements before assembly.

1 Half Coupler
The half-conical coupler body that receives the connecting truss segment.
1 Coupler-Pin
Secures the connected truss segment at the conical coupling.
1 Cotter Pin / R-Clip
Retains the installed coupler-pin after installation.
1 M10 x 20 mm Bolt
Steel Grade S45C bolt, 1.5 thread pitch, torqued to 11 ft-lb with a 6 mm hex key to secure the connector to the base plate — not to the truss.

Technical Reference

EVT290A-BCON Specifications.

The following values identify the connector dimensions, thread specification, material, finish, included hardware, and listed compatibility. Confirm current manufacturer drawings, instructions, connection hardware, component condition, and technical documentation before ordering or assembling a truss system.

Identification

Product Details

Model / SKUEVT290A-BCON
Product TypeHalf Conical Connector
Base Plate MaterialAluminum, Steel, or Custom Material
Weight0.28 lb / 0.13 kg

Construction

Material and Finish

MaterialAluminum Alloy EN AW-6061 T6
FinishBrushed Aluminum
Bolt MaterialSteel Grade S45C

Threading

Mounting Bolt and Thread

Thread SpecificationM10 x 1.5 Pitch
Bolt Length20 mm
Bolt Torque Spec11 ft-lb
Hex Key Size6 mm
Included HardwareHalf Coupler, Coupler-Pin, R-Clip, M10 x 20 mm Bolt

Compatibility

System Fit

Primary SystemsEVT290I, EVT290T, EVT290S
Listed CompatibilityF34 and Standard 290 mm Truss Systems
Connection TypeConical Connection System

System Compatibility

EVT290I, EVT290T, EVT290S, and F34 Truss Systems.

The EVT290A-BCON's truss-side coupler is designed for compatible EVT290I I-Beam, EVT290T Triangular, EVT290S Square, and F34-format 290 mm truss systems. Confirm receiver dimensions, conical connector details, thread specification, and applicable structural data before combining components from different systems.

EVT290I System
The connector is compatible with the EVT290I I-Beam aluminum truss profile.
EVT290T System
The connector is compatible with the EVT290T triangular aluminum truss profile.
EVT290S System
The connector is compatible with the EVT290S nominal 290 mm square-truss profile.
F34 System
The product is intended for F34-style 290 mm truss systems with matching connection details.
Physical Fit Does Not Establish Structural Equivalence
A component may physically connect to another 290 mm truss component without the complete assembly having equivalent structural properties. Verify connector dimensions, thread specification, material, and engineering requirements before combining components from different systems.

Connection and Assembly

Bolt to the Base Plate, Then Make the Standard Conical Truss Connection.

Assembly should be completed by trained personnel using matching components and the approved truss system. The base plate bolt and the truss connection are separate steps: secure the connector to the base plate first, then complete the conical coupling to the truss.

01 — Inspect Components
Check the connector, threads, coupler-pin, r-clip, and M10 bolt for damage, thread wear, or deformation.
02 — Position on the Base Plate
Align the connector on the aluminum, steel, or custom-material base plate and insert the M10 x 20 mm bolt through the underside.
03 — Tighten the Bolt
Using a 6 mm hex key, torque the M10 bolt to 11 ft-lb to secure the connector to the base plate. Thread-locking fluid is recommended for permanent installations.
04 — Connect Truss
Align the truss receiver with the conical coupling and install the coupler-pin.
05 — Secure the R-Clip
Install the r-clip to retain the coupler-pin at the truss connection.
06 — Verify Before Loading
Confirm bolt torque, coupler-pin and r-clip installation, base plate suitability, and the complete support arrangement before loading or lifting.

Safety and Engineering

Two Separate Connections Both Require Full Verification.

The EVT290A-BCON does not independently establish a load, height, or freestanding-structure rating. The base plate bolt and the conical truss connection are two separate joints, and both must be verified independently. Stability depends on the mounting bolt reaching its specified 11 ft-lb torque, the base plate's material and ballast, the coupler-pin and r-clip at the truss side, and the complete approved truss system. Confirm all support, connection, and engineering requirements before erecting or loading a structure that uses this connector.

Torque the M10 base plate bolt to 11 ft-lb using a 6 mm hex key. For permanent installations, use of a thread-locking fluid such as Loctite is recommended.
Regularly check the bolt, as dynamic loads and vibrations can loosen it over time.
Confirm the base plate — aluminum, steel, or custom material — is sufficiently sized, thick, or ballasted for the intended installation.
Inspect components for thread damage or deformation before use.
Ensure the coupler, coupler-pin, and r-clip at the truss connection are correctly installed and fully secured, separately from the base plate bolt.
If replacing lost bolts, ensure the correct M10 x 1.5 pitch specification is used and re-torqued to 11 ft-lb.
While F34 compatible, always test-fit the truss connection with other brands to ensure proper coupler-pin alignment.
Assembly and installation must be performed only by trained and qualified personnel.
Verify Current Documentation Before Ordering or Installing
Confirm current manufacturer drawings, instructions, and included hardware against the actual product package before ordering or installing the EVT290A-BCON. Verify compatibility with the specific EVT290I, EVT290T, EVT290S, or F34-format truss components being used, confirm the base plate material and thickness are suitable for the application, and torque the mounting bolt to the specified 11 ft-lb. Suspended, public-facing, outdoor, or other load-bearing structures using this connector require project-specific review by qualified rigging or engineering personnel before use.

Product Questions

EVT290A-BCON Frequently Asked Questions.

Does the truss bolt on, or connect through the standard coupler?

The truss connects through the standard half conical coupler, secured with a coupler-pin and r-clip, exactly like any other conical joint in the system. The M10 bolt only attaches the connector to the base plate; it never touches the truss itself.

What base plate materials does it work with?

The EVT290A-BCON bolts to aluminum, steel, or custom-material base plates, so it fits whatever base plate material a project is already using.

What torque and tools are needed for the bolt?

The M10 bolt is torqued to 11 ft-lb using a 6 mm hex key.

What hardware is included?

Each unit includes one half coupler, one coupler-pin, one cotter pin (r-clip), and one M10 x 20 mm bolt (1.5 thread pitch).

Need a Base Plate Connector for Truss?

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