● 9 min readTop Products This Week: Probots Expert Lab Briefing – 13 April 2026
Workbench Vol. 20 🔬 Weekly Lab Discovery Based on observed performance characteristics and early reports from the new batch of Compute Module 5 IO boa
Read Article →| Bulk Pricing | ||
|---|---|---|
| QTY | Unit Price(Inlc. GST) | |
| 25+ | ₹137.61 ₹ 116.62 + 20.99 GST | |
| 50+ | ₹136.22 ₹ 115.44 + 20.78 GST | |
| 75+ | ₹132.05 ₹ 111.91 + 20.14 GST | |
| 100+ | ₹130.66 ₹ 110.73 + 19.93 GST | |
Premium black anodised 5-hole T-shaped joining plate for 2020 aluminium extrusions. Engineered for high-rigidity T-junctions and structural cross-members in CNC and 3D printer frames.
Is your structural frame lacking the rigidity needed for high-precision motion? Internal corner brackets are excellent for basic alignment, but when your build faces heavy loads or high-speed vibrations, you need the external reinforcement of a T-junction that won't budge. The Black 5-Hole T-Connection Plate is the heavy-duty industrial solution for creating rock-solid, perpendicular joints in any 2020 aluminum extrusion project.
Probots™ ProSpec Grade Structural Superiority Unlike generic plates stamped from thin 2mm sheets, these connectors are Probots™ ProSpec Grade . Milled from a substantial 4mm thick aluminum block and finished with a premium black anodized coating, they provide massive surface area contact across five mounting points. This design effectively converts a standard friction joint into a structurally bonded "backbone," ensuring your machine remains perfectly square even under the weight of heavy 3D printer gantries or CNC spindle torque.
Material: 6063-T5 High-Strength Aluminum Alloy
Thickness: 4mm (Heavy-Duty Industrial Grade)
Finish: Matte Black Anodized (Corrosion & Scratch Resistant)
Hole Count: 5 Precision-Drilled Mounting Holes
Hole Diameter: 5.5mm (Optimized for M5 Fasteners)
Hole Spacing: 20mm (Standard 2020 Series Pattern)
Dimensions: 60mm x 60mm
Weight: 48g
3D Printer Frames: Essential for reinforcing the cross-members of large CoreXY or Cartesian frames.
CNC Routers: Used to secure the Y-axis rails to the base frame for zero-flex performance.
Custom Workbenches: Create high-strength T-joints for shelving, monitor mounts, and modular lab furniture.
Modular Enclosures: Perfect for building robust protection fences or electronics racks with a professional "stealth" look.
Unlock New Capabilities (Project Evolution)
Past Projects: If you have previously relied on internal hidden L-joints or cast corner brackets, you know they can "pivot" or loosen under dynamic loads.
Feature Upgrade: This external T-plate locks three sections of profile together (one perpendicular, two parallel) using five separate anchor points. It unlocks the ability to build much larger structures that maintain their geometry indefinitely.
Effort Level: Beginner. No drilling, tapping, or machining of the aluminum profile is required.
Virtual Technician & Wiring
Probots™ LifeCycle Ready Alignment: For the most reliable joint, we recommend using this plate in conjunction with M5x10mm Button Head screws and M5 Hammer T-Nuts.
Installation Tip: Secure the center hole first to align the perpendicular profile, then work your way outward. This prevents the "racking" effect and ensures your cross-member is perfectly centered.
1 x Black 5-Hole T-Connection Plate (2020 Series)
Does this plate fit T-Slot or V-Slot? It is fully compatible with both European standard 2020 T-Slot and V-Slot profiles.
Is it made of steel? No, it is milled from 6063-T5 Aluminum, which is lighter than steel while offering excellent structural rigidity.
What size screws do I need? The holes are precision-drilled for M5 screws.
How thick is the plate? It is 4mm thick, providing significantly more strength than standard 2mm plates.
Does it come with mounting hardware? No, this is the plate only. T-nuts and M5 screws are sold separately.
Can I use this for 2040 profiles? Yes, it will fit perfectly on the 20mm side of a 2040 profile.
Is the black finish paint? No, it is an anodized finish, which is harder and more durable than paint.
Will it fit 3030 profiles? No, 3030 profiles require a different hole spacing (30mm). This is for the 2020 (20mm) series.
Do I need to drill my aluminum profile? No, this plate mounts externally using the existing slots in your profile.
Is it suitable for high-vibration machines? Yes, the 5-point mounting system makes it one of the most vibration-resistant connectors available.
What is the total size of the plate? It measures 60mm x 60mm along the "T" axes.
Can I use this to mount a motor? While primarily for joints, the M5 holes can sometimes be used to mount custom brackets or sensor plates.
Will it rust if used outdoors? Anodized aluminum is highly resistant to corrosion and will not rust like raw steel.
What is the hole diameter? The holes are 5.5mm in diameter.
Does it matter which side faces the profile? Both sides are precision-finished, but the anodized matte finish looks best facing outward.
Is this plate cast or milled? These are precision-milled from aluminum blocks for superior edge accuracy.
Can I use M4 screws instead? You can, but M5 is recommended for the best fit and maximum strength.
Does it add much weight to the frame? At only 48g, it provides massive strength with negligible weight addition.
How do I ensure the joint is square? Use a machinist’s square during installation before fully tightening all 5 screws.
Is this a genuine OpenBuilds part? It follows the industry-standard design compatible with OpenBuilds and V-Slot systems.a




Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in
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Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in
We offer specialized services for Bulk, Wholesale & B2B Customers like discounted prices, additional shipping options, customised products, etc . Customer with large quantity & regular orders qualify for the specialised discounted rates.
We also offer dedicated sales team to assist you with the order process by providing sales quotations, PI, technical support for choosing products, etc.
Note: Business Orders are processed manually and usually take 1-3 days to process compared to placing the order directly on our website. Please plan your purchases accordingly.
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First-time buyers can expect prompt delivery and responsive support via WhatsApp, which is particularly helpful for those needing quick resolutions or technical guidance for their projects. Although certain items are priced higher than local alternatives, the store is highly recommended for its genuine components and helpful staff.
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