● 17 min readShowdown: Uno R4 vs Uno R3 vs Nano
Welcome to Vol. 12 of The Probots Showdown. Three boards. Three price points. Three very different futures for your project.Should you stick with the
Read Article →| Bulk Pricing | ||
|---|---|---|
| QTY | Unit Price(Inlc. GST) | |
| 25+ | ₹18.81 ₹ 15.94 + 2.87 GST | |
| 50+ | ₹18.62 ₹ 15.78 + 2.84 GST | |
| 75+ | ₹18.05 ₹ 15.3 + 2.75 GST | |
| 100+ | ₹17.86 ₹ 15.14 + 2.73 GST | |
Snap-fit black plastic end cap for 2020 aluminium extrusions. Protects against sharp edges and prevents dust accumulation for a professional machine finish.
Ever caught your sleeve or scratched your hand on the sharp, raw edge of an aluminum extrusion? Beyond the safety hazard, exposed profile ends often collect dust, debris, and spider webs, making your high-tech build look unfinished. The Black Plastic End Cap for 2020 Aluminum Profile is the simplest way to transform a raw industrial frame into a sleek, professional, and safe machine.
Probots™ QC-Pass Precision Fit Not all plastic caps are equal; some are too loose and fall out under vibration, while others are so brittle they crack during installation. These caps are Probots™ QC-Pass . Molded from high-impact, UV-resistant black ABS, they feature a reinforced internal tap pin designed to grip the center hole of standard 2020 profiles. This ensures a "set-and-forget" fit that stays secure even on high-vibration 3D printers or mobile robotic chassis.
Material: High-Impact Black ABS / Nylon
Color: Industrial Matte Black
Compatibility: Standard 2020 Series (20mm x 20mm) T-Slot & V-Slot Profiles
Dimensions: 20mm x 20mm x 8mm
Installation: Tool-less Press-Fit (Snap-in)
Features: Dust-proof, anti-scratch, and rounded safety edges
Weight: ~2 grams
3D Printer Frames: Seal the top of vertical pillars for a clean, factory-finished look.
CNC Enclosures: Prevent metal chips and cooling fluid from entering the hollow profile channels.
Custom Furniture: Ideal for sim-racing rigs, desks, or shelving where exposed metal edges are a safety concern.
Robotic Chassis: Protects sensitive internal wiring from being snagged on raw aluminum cuts.
Unlock New Capabilities (Project Evolution)
Past Projects: If you’ve previously used electrical tape or 3D-printed caps to cover your profile ends, you’ve likely dealt with peeling adhesive or inconsistent fits.
Feature Upgrade: These injection-molded caps provide a uniform, professional aesthetic across your entire project. They unlock a "commercial grade" appearance for DIY builds.
Effort Level: Beginner. Simply align with the center hole and push.
Virtual Technician & Tips
Probots™ Secure-Transit: We know small parts are easy to lose. Every order is packed using Probots™ Secure-Transit logic, ensuring your end caps arrive in a sealed, labeled bag rather than loose in a large box.
Installation Tip: If the cap feels too tight, a light tap with a rubber mallet or the handle of a screwdriver will seat it perfectly flush. Avoid using a metal hammer to prevent marring the plastic finish.
1 x Black Plastic End Cap for 2020 Aluminum Profile
Is this cap compatible with 2040 profiles? No, 2040 profiles require a larger 20x40mm cap or two 2020 caps side-by-side (if the profile center holes allow).
Does it require a screw for mounting? No, it uses a friction-fit center pin that snaps directly into the profile's center hole.
Will it fit V-Slot profiles? Yes, it fits both standard T-Slot and V-Slot 2020 extrusions.
Is the plastic UV resistant? Yes, the black ABS material is designed to resist fading and brittleness when exposed to light.
Can I remove it after installation? Yes, it can be pried off gently with a flat-head screwdriver if you need to access the profile end later.
Does it block the T-slots? No, the cap only covers the end face; your T-slots remain fully accessible.
Is this suitable for outdoor use? Yes, the plastic is corrosion-proof and protects the internal aluminum from water ingress.
Will it fit a profile with an M5 tapped hole? It should still fit, though the grip may be slightly tighter or looser depending on the tap depth.
Is the finish matte or glossy? It has a professional semi-matte industrial finish to match anodized black profiles.
Does it help with noise? It can slightly reduce "whistling" sounds caused by air moving through hollow profiles in high-speed fan environments.
Is it made of soft rubber or hard plastic? It is made of hard, durable ABS plastic for a secure, permanent fit.
What is the purpose of the center pin? The pin aligns with the profile's center bore to keep the cap centered and secure.
Can I paint these caps? Yes, ABS plastic takes plastic-specific spray paints very well.
How many do I need for a standard 3D printer? Most Cartesian printers have 4 exposed top ends and 4 bottom ends, so 4 to 8 caps are typical.
Are these caps heat resistant? They are rated for standard operating temperatures (up to 80°C), making them safe for 3D printer frames.
Do they come in silver? We currently stock the black version as it provides the best contrast and professional look.
What happens if my profile cut isn't perfectly square? The cap has a slight lip that can help hide minor unevenness in the cut.
Is it compatible with 80/20 brand profiles? Yes, provided the dimensions are metric 20mm x 20mm.
Will it fall out if the machine vibrates? The internal tension fins are designed to prevent the cap from vibrating loose.
Can I use it to hide wiring inside the profile? Yes, it's a great way to keep wires tucked neatly inside the extrusion channel.




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 delivery electronics components and parts throughout India using standard couriers like Bluedart, Delhivery & India Post.
For order related queries contact -
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.
Need Help?
For bulk enquiries contact us by -
Probots Electronics is highly regarded for its great selection of components and professional service. Customers frequently praise the awesome care and timely delivery provided by the team to ensure all products arrive safely.
● 17 min readWelcome to Vol. 12 of The Probots Showdown. Three boards. Three price points. Three very different futures for your project.Should you stick with the
Read Article →
● 10 min read12 projects. One board. Zero excuses. From a radar scanner that maps your room to a voice-controlled robot car you command with your phone — this is w
Read Article →
● 20 min readIf you have outgrown the basic “blinky” boards but aren’t ready to spend hundreds of dollars on enterprise gear, the Tang Primer 25K
Read Article →