EVT290A‑CS30 30 mm male‑to‑male conical spacer with machined collar and tapered ends
Technical drawing of EVT290A‑CS30 spacer showing 30 mm extension and 50 mm overall length
Male-to-male conical coupler spacer installed between truss segments in a 290 mm system
EVT290A‑CS30 30 mm male‑to‑male conical spacer with machined collar and tapered ends
Technical drawing of EVT290A‑CS30 spacer showing 30 mm extension and 50 mm overall length
Male-to-male conical coupler spacer installed between truss segments in a 290 mm system

EVT290A-CS30

Original price was: $37.00.Current price is: $24.00.

EVT290A-CS30 — 30mm Coupler Spacer for 290mm Truss

Dimensions & Specs
Spacer Length: 1.18 in (30 mm)
Outer Diameter: 1.96 in (50 mm) (Matches standard truss tubing)
Function: Expands truss length for custom measurements and adjustments

Construction
Material Type: Aluminum Alloy EN AW-6061 T6
Type: Double-Ended Male Conical Coupler
Compatibility: Fits standard 290mm Truss Conical Connection points

Finish & Features
Surface: Aluminum Brush Finish
Included: 30mm Spacer Coupler Only
Note: Coupler Pins and Cotter Pins are NOT included
Weight: 0.64 lb (0.29 kg)

In stock

SKU: EVT290A-CS30 Categories: , , ,

EVT290S Truss Systems Knowledge Center

EVT290A-CS30 30 mm (1.18 in) Male Truss Coupler Spacer.
Adds 30 mm to One 290 mm Conical Truss Connection.

The EVT290A-CS30 is a double-ended male conical aluminum spacer that adds a fixed 30 mm (1.18 in) at one compatible 290 mm truss connection. Before installing, confirm the connection actually requires 30 mm and that the complete joint — including truss receivers, conical hardware, coupler-pin length, and retaining hardware — will still work with the spacer in place. It is not a truss section, an independent support point, or a direct load-attachment location.

Product Facts

Model / SKUEVT290A-CS30
Product TypeDouble-Ended Male Conical Coupler Spacer
Added Length30 mm / 1.18 in
Outer Diameter50 mm / 1.96 in
MaterialAluminum Alloy EN AW-6061 T6
Component Weight0.64 lb / 0.29 kg
30 mmLength Added
50 mmOuter Diameter
110 mmOverall Height
0.64 lbComponent Weight
Not IncludedCoupler-Pins / R-Clips

What It Is

One Fixed Coupler Spacer for One Specific 30 mm Connection Condition.

The EVT290A-CS30 is a single-piece, double-ended male conical spacer with an integrated 30 mm collar. It is machined from Aluminum Alloy EN AW-6061 T6 with a brushed aluminum finish.

Fixed 30 mm Collar
Adds a fixed 30 mm (1.18 in); it does not provide adjustable travel.
Male-to-Male Form
Provides male conical ends for compatible receivers of adjoining truss sections.
Brushed Aluminum
Made from Aluminum Alloy EN AW-6061 T6 with a brushed aluminum finish.
Connection Component
Modifies one connection — it is not a truss section or an independent support point.

What It Changes

It Adds 30 mm to One Joint. It Does Not Create a New Load Point.

The spacer adds 30 mm (1.18 in) at the selected, compatible joint. It does not independently establish allowable span, load capacity, pick-point location, or support arrangement.

Changes
Adds 30 mm (1.18 in) to the selected connection length.
Does Not Change
Does not establish a load rating or support configuration for the modified structure.
Does Not Include
Does not include coupler-pins, r-clips, or other retaining hardware.
Does Not Permit
Does not permit direct load attachment or support from the spacer joint.

Application Uses

Close a Larger Measured Gap at a Single Connection.

The EVT290A-CS30 is used wherever a 290 mm truss system comes up 30 mm short or long at a single connection point — a difference too large for the 10 mm or 20 mm spacers, but still a single-connection adjustment rather than a structural rework.

01
Custom Measurement Adjustments
Close a 30 mm gap in a 290 mm truss system without cutting or replacing a truss section.
02
Architectural Alignment
Match a reviewed interface with measured display or architectural conditions.
03
Technical Frame Adjustments
Adjust controlled dimensions around cameras, sensors, lighting, and display interfaces.
04
EVT290S and F34 Truss Systems
Adjust measurements in EVT290S or F34-format 290 mm square truss systems using matching hardware.

Selection Guidance

Use It for a Confirmed 30 mm Gap. Not as a General-Purpose Workaround.

Select this spacer only when a measured truss system requires a 30 mm addition at a compatible joint. Because it creates a larger fixed dimension change than the 10 mm and 20 mm variants, complete coupler, receiver, coupler-pin, and retainer engagement must be confirmed.

Measured 30 mm Difference
For a 30 mm addition at one specific connection.
Architectural Alignment
For a reviewed interface with measured display or architectural conditions.
Technical Frame Fit
For controlled dimensions around cameras, sensors, lighting, and display interfaces.
No Unapproved Stacking
Do not stack spacers or substitute combinations without approval for the complete structure.

What's Included

One Spacer. Retaining Hardware Sold Separately.

The EVT290A-CS30 ships as a single double-ended male conical spacer. It does not include coupler-pins or r-clips — these must be sourced separately and matched to the completed connection.

1 Male-to-Male Spacer
A double-ended conical coupler that inserts between two compatible truss receivers.
Brushed Aluminum
Made from Aluminum Alloy EN AW-6061 T6 with a brushed aluminum finish.
No Retaining Hardware
Coupler-pins and r-clips are not included and must be selected to match the completed connection.
Matches Standard Tubing
The 50 mm outer diameter matches standard 290 mm truss tubing.

Technical Reference

EVT290A-CS30 Specifications.

The following values identify the spacer dimensions, material, weight, and listed compatibility. Confirm current manufacturer drawings, instructions, retaining hardware, and technical documentation before ordering or assembling a truss system.

Identification

Product Details

Model / SKUEVT290A-CS30
BrandEvolve Truss
Product TypeDouble-Ended Male Conical Coupler Spacer
Weight0.64 lb / 0.29 kg

Dimensions

Size

Spacer Length30 mm / 1.18 in
Outer Diameter50 mm / 1.96 in
Overall Height110 mm

Construction

Material and Finish

MaterialAluminum Alloy EN AW-6061 T6
FinishBrushed Aluminum
Included HardwareNone (Coupler-Pins/R-Clips Not Included)

Compatibility

System Fit

Primary SystemsEVT290I, EVT290T, EVT290S
Listed CompatibilityF34 and EVT50ST Single Tube Truss

System Compatibility

EVT290S, F34, and Matching 290 mm Square Conical Truss Systems.

The EVT290A-CS30 is a double-ended male conical spacer for compatible 290 mm square truss connection points. Compatibility with other components requires matching receiver spacing, conical coupler dimensions, chord dimensions, coupler-pin length, retaining hardware, and engineering data for the completed structure.

EVT290S Compatibility
Designed to integrate with compatible EVT290S sections, corners, bases, and accessories when the complete connection is physically confirmed.
F34 Compatibility
Compatible with matching F34 290 mm square dimensions and conical hardware when the interfaces and full coupler engagement match.
Connection Engagement
The 30 mm spacer changes connection depth. Confirm complete receiver engagement and suitable coupler-pin and retention hardware.
Mixed-System Confirmation
Do not assume compatibility from the 290 mm classification alone. Test-fit the complete connection on the ground before lifting.

Installation Conditions

Check the 30 mm Joint Before It Leaves the Ground.

Installation requires a confirmed truss system requirement, serviceable parts, correct hardware, and a complete inspection before the connection is put into service.

01 — Confirm Requirement
Confirm the truss system calls for a 30 mm addition at the specific connection.
02 — Inspect Components
Do not use damaged, deformed, cracked, or incompatible components.
03 — Test-Fit the Full Joint
Confirm receivers, couplers, coupler-pins, and retainers achieve full required engagement with the spacer installed.
04 — Secure and Inspect
Install all required hardware fully, then inspect before the structure is loaded or lifted.

Safety Limits and Review

A 30 mm Change Requires More Than an Assumption About Fit.

The EVT290A-CS30 is a structural connection component. It does not establish a load rating for the modified structure. Do not exceed the capacity of the spacer or the truss system it modifies, and do not support loads directly from the spacer connection point.

Do not exceed the capacity of the spacer or the truss system it modifies.
Do not support loads directly from the spacer connection.
Confirm full conical coupler engagement in both receivers after the 30 mm spacer is installed.
Use coupler-pins and retention hardware of sufficient length and suitability for the completed connection.
Have the complete structure reviewed by a licensed professional engineer.

Variant Relationship

Start With the Gap You Measured. Then Choose the Matching Spacer.

Spacer length and finish must match what the connection requires. Do not stack, substitute, or combine variants unless the exact arrangement is approved for the complete structure.

CS10 / CS10 Black
10 mm (0.39 in), brushed aluminum or matte black.
CS20 / CS20 Black
20 mm (0.79 in), brushed aluminum or matte black.
CS30 (This Product)
30 mm (1.18 in), brushed aluminum.
Do Not Combine Smaller Spacers to Reach 30 mm
A 30 mm requirement calls for this single-piece spacer, not a combination of 10 mm and 20 mm units. Do not stack spacers or combine dimensions without engineering approval for the complete connection.
Confirm Current Documentation Before Ordering or Installing
Confirm current manufacturer drawings, instructions, and required retaining hardware before ordering or installing the EVT290A-CS30. Confirm compatibility with the specific EVT290I, EVT290T, EVT290S, F34-format, or EVT50ST truss components being used, and physically test-fit the complete connection on the ground before lifting. Suspended, public-facing, outdoor, or other load-bearing structures using this spacer require project-specific review by a licensed professional engineer before use.

Product Questions

EVT290A-CS30 Frequently Asked Questions.

What does the CS30 do?

It adds 30 mm (1.18 in) at one compatible 290 mm conical truss connection.

Why is the complete joint check important?

The 30 mm collar changes connection depth, so the joint must retain required coupler, receiver, coupler-pin, and retainer engagement.

Are coupler-pins included?

No. The spacer is supplied without coupler-pins or r-clips — these must be sourced separately.

Can I combine a 10 mm and a 20 mm spacer instead of using this one?

No. A 30 mm requirement calls for this single-piece spacer. Do not stack spacers or combine dimensions without engineering approval for the complete connection.

Need to Close a 30 mm Gap in a 290 mm Truss System?

Contact us for compatibility checks, hardware guidance, measurement review, quantities, CAD resources, and engineering coordination.

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