EVT290S-ABP12MH multi-hole aluminum base plate with 12mm and 10mm mounting slot arrays for 290mm square truss systems

EVT290S-ABP12MH

Original price was: $143.00.Current price is: $95.00.

EVT290S-ABP12MH — 12" x 12" Multi-Function Aluminum Mounting Base Plate

Dimensions & Construction
Overall Dimensions: 12 in x 12 in (304.8 mm x 304.8 mm)
Plate Thickness: 0.25 in (6.35 mm)
Material Type: High-Strength 6061-T6 Aluminum Alloy

Finish & Features
Multi-Mount Design: 12 arrays of 12mm slots, 10 arrays of 10mm slots, one 12mm center hole, and one 30mm outer hole
Use Case: Suitable for use as a bottom floor plate or a top mounting plate for lighting fixtures
Surface: Aluminum Brush Finish
Connection Type: Conical Connection System (Includes Couplers, Tapered Pins, and R-Clips)
Compatibility: Fits F34, EVT290S, and all standard 290mm Square Truss systems
Weight: 4.0 lb (1.81 kg)

In stock

SKU: EVT290S-ABP12MH Categories: ,

Multi-Function Aluminum Base Plate Knowledge Center

A 12x12 Multi-Mount Plate for 290 mm Square Truss.
Floor Support, Top Mounting, and Direct Fixture Attachment in One Compact Plate.

The EVT290S-ABP12MHMH is a 12x12 in multi-function aluminum mounting base plate for compatible 290 mm square truss systems. Its 0.25 in plate thickness, 12 mm and 10 mm slot arrays, center and outer mounting holes, and included conical hardware support both bottom-floor and top-mount applications.

Product Facts

ModelEVT290S-ABP12MHMH
Plate Size12x12 in
Thickness0.25 in / 6.35 mm
Weight4 lb / 1.81 kg
Slot Arrays12 mm and 10 mm
FinishBrushed Aluminum
12x12 inPlate Size
6.35 mmPlate Thickness
4 lbProduct Weight
12 mm / 10 mmMounting Slots
290 mmTruss Compatibility

Product Overview

One Plate for Truss Support and Equipment Mounting.

Unlike a basic solid base plate, the EVT290S-ABP12MHMH combines a conical truss-connection layout with multiple slot and hole patterns for compatible lighting, audio, display, and mounting hardware.

12x12 Compact Footprint
Provides a portable mounting surface for compatible 290 mm square truss systems.
Multi-Hole Layout
Includes 12 mm and 10 mm slot arrays plus dedicated center and outer holes.
Top or Bottom Use
Can serve as a floor-mounted truss plate or a top mounting platform for compatible fixtures.
Conical Truss Connection
Includes compatible couplers, tapered pins, and R-clips for the intended truss interface.

Applications

Designed for Lighting, Audio, Displays, and Custom Event Builds.

Moving-Head Mounting
The slot arrays can support compatible fixture hardware when the complete installation is properly rated.
Top-Mount Platforms
Creates a compact mounting surface at the top of a compatible vertical truss column.
Floor-Mounted Columns
Connects to compatible 290 mm square truss for short columns and separately stabilized structures.
Audio and AV Hardware
Provides multiple attachment positions for compatible audio, AV, and accessory hardware.
Exhibit and Architectural Displays
Supports clean, reusable mounting arrangements for temporary displays and installations.

Who It Is For

Built for Lighting, Exhibit, AV, Rental, and Production Teams.

Lighting Technicians
For mounting compatible fixtures directly to a slotted aluminum plate.
Exhibit Builders
For compact truss columns, signage, branded displays, and equipment platforms.
AV Integrators
For adaptable attachment of compatible production and presentation hardware.
Rental Companies
For reusable multi-purpose plate inventory across varied event applications.
Designers and Engineers
For integration into approved truss layouts and custom mounting concepts.

Functional Details

A Flexible Mounting Pattern for Custom Equipment Layouts.

Twelve 12 mm Slot Arrays
Provides multiple mounting positions for compatible bolts and fixture hardware.
Ten 10 mm Slot Arrays
Adds a second mounting pattern for smaller compatible hardware.
12 mm Center Hole
Supports centered attachment of compatible hardware or accessories.
30 mm Outer Hole
Provides an additional large-diameter mounting or routing position.
Brushed Aluminum Finish
Matches the appearance of standard aluminum truss systems.

Technical Details

Detailed Specifications.

Identification

Product Information

Model / SKUEVT290S-ABP12MHMH
Product TypeMulti-Function Aluminum Mounting Base Plate
Primary UseBottom Floor Plate or Top Mounting Plate

Physical Dimensions

Plate Size

Width12 in / 304.8 mm
Depth12 in / 304.8 mm
Thickness0.25 in / 6.35 mm
Weight4 lb / 1.81 kg

Construction

Material and Finish

Material6061-T6 Aluminum Alloy
FinishBrushed Aluminum

Mounting Pattern

Slots and Holes

12 mm Slot Arrays12 Arrays
10 mm Slot Arrays10 Arrays
Center Hole12 mm
Outer Hole30 mm

System Compatibility

EVT290S, F34, and Standard 290 mm Square Truss Systems.

EVT290S-ABP12MHMH uses 290 mm square truss geometry and a matching conical connection system. Compatibility requires matching receiver spacing, coupler dimensions, and engineering data.

EVT290S Compatibility
Integrates with compatible EVT290S straight sections and related 290 mm square components.
F34 Compatibility
Compatible with matching F34 290 mm square truss geometry and conical hardware.
Standard 290 mm Square Systems
Verify receiver spacing, connection geometry, and engineering data before combining systems.
Conical Hardware Compatibility
Use matching couplers, tapered pins, and R-clips approved for the connected truss system.

Installation Sequence

Configure the Plate for Floor, Top-Mount, or Equipment Use.

01 — Inspect the Plate
Confirm the plate is flat, undamaged, and free from cracks, deformation, and damaged slots.
02 — Select the Mounting Function
Determine whether the plate will serve as a bottom plate, top plate, or direct equipment-mounting platform.
03 — Verify Hardware
Confirm all conical and equipment-mounting hardware matches the plate, truss, fixture, and approved layout.
04 — Connect the Truss or Equipment
Seat all components fully and use the correct slots or holes without forcing mismatched hardware.
05 — Secure and Stabilize
Tighten mounting hardware and add ballast, anchoring, or engineered support where required.
06 — Final Inspection
Check alignment, connection engagement, fixture security, stability, and secondary safety before use.

Safety and Stability

A Multi-Mount Plate Still Requires Proper Stability and Load Planning.

At approximately 4 lb, this plate does not provide significant ballast by itself.
Do not rely on the plate alone to stabilize tall freestanding towers, arches, or wind-exposed structures.
Confirm every fixture, bolt, washer, nut, slot, truss connection, and secondary safety is properly rated for the application.
Use only mounting hardware that fits the selected 10 mm, 12 mm, center, or outer-hole location without modification.
Use appropriate ballast, anchoring, or engineered support for every floor-mounted structure.
Inspect the plate and all slot edges before every use; remove bent, cracked, enlarged, or damaged plates from service.
Installations should be completed by trained truss personnel and reviewed by a licensed professional engineer where required.

Frequently Asked Questions

EVT290S-ABP12MHMH Questions.

What makes this plate multi-function?
It combines a 290 mm square-truss connection layout with 12 mm and 10 mm slot arrays, a 12 mm center hole, and a 30 mm outer hole for compatible equipment mounting.
What are the plate dimensions?
The plate measures 12x12 in / 304.8x304.8 mm and is 0.25 in / 6.35 mm thick.
How much does it weigh?
The documented product weight is approximately 4 lb / 1.81 kg.
Can it be used as both a bottom and top plate?
Yes. The source identifies it for bottom-floor use and top mounting of compatible fixtures.
Is it compatible with EVT290S and F34?
Yes, when receiver spacing, coupler dimensions, connection geometry, and engineering data match the connected 290 mm square truss system.
What material is the plate made from?
The product description lists 6061-T6 aluminum alloy. The page's legacy structured data lists EN AW-6082 T6, so the alloy should be confirmed before engineering or fabrication use.
Is a 3D model available?
Yes. The product source includes a GLB 3D model for the EVT290S-ABP12MHMH.

Need the correct base plate for your truss structure?

Contact us for compatibility checks, ballast planning, mounting-pattern details, CAD files, engineering coordination, and quantity pricing.

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