Boeray 10pcs Black T Slot L-Shape Interior Inside Corner Connector Joint Bracket with Screws and Wrench Tool for 4040 Series European Standard Aluminum Extrusion Profile Slot 8mm
Product ID: 136490597
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Color Name:4040 Boeray 10pcs Black T Slot L-Shape Interior Inside Corner Connector Joint Bracket with Screws and Wrench Tool for 4040 Series Aluminum Extrusion Profile Slot 8mm Material: Electrophoresis Zinc alloy , has excellent features in high abrasion resistance, rust proof and stability. Packed: 10 L joints + 20 sets screw + 1 wrench for set screw,more convenient than L-Shape only Advantage:Concealed corner brace, the L corner bracket can be completely hidden in the slot of the aluminum extrusions Fit:Suitable for 4040 european standard aluminum profiles slot 8mm Widely used for building industrial aluminum frame structures, 3D printers, CNC routers, laser engravers, robotics projects
R**N
Low price point seems to be a reflection of quality control effort
While it was safe to assume that these brackets would be cast (instead of extruded or wrought) aluminum given the low price point, I was rather disappointed by inconsistent threading for the set screws. Of the package of 20 brackets, 10 had two properly tapped holes, 8 had holes tapped that had retained chips or burrs that requires chasing with a tap before the fastener could be threaded-in, and two were each missing threads altogether on one hole. While none of this warranted retiring the product for a refund, the needed rework was a waste of time and would have been even more problematic if I hadn't already owned metric taps.
G**3
Essential for assembly
A must-have for building corners with t-slot and v-slot. These are smooth, nicely coated, and don't (yet) bend. I was annoyed that the set screws weren't already installed, until I realized there are different orientations that require set screws installed in different directions. Play around and you can make inside, outside, even sliding connections.
M**L
Doesn't fit 2020 extrusions without grinding
Used on Tevo Nereus. Did not fit without modification.
N**Y
Has a DIFFERENT channel profile on each end
One side of the L-Shape fit into my aluminum extrusion no problem, the other side has a different profile and will not fit. I tried hammering one of these brackets into the t-slot, and it snapped in half at the bend. Cheap sintered metal construction.Waited a whole month to receive order, really disappointed that they did not tell you the two sides have differing profiles and will not fit.
D**.
Mostly great
One hole in one of the brackets was not threaded! Fortunately, I have a set of taps so I fixed that. But that's the only reason I didn't give 5 stars.
M**U
Garbage
This is terrible. When screwing it with the provided tool, it damages it so I cannot unscrew it now.
M**L
Does not fit 2020 rails
I ordered two sets of these, and I regret to say that they DO NOT fit 2020 rail as advertised.With a couple minutes of filing, this can be fixed, but if you are building something with several hundred of these, buy from somewhere else.
Z**A
Good
Worked well for my purpose. Liked that one side of the corner is made to actually slide down the extrusion bars if needed.
A**K
Excellent product.
Very good quality! Perfect fit in my 2040 channels and hold super firm too. Can't beat this quality at this price point.
D**B
Perfect fit
Excellent quality and fast delivery, very satified
K**E
Good
Get the job done
Trustpilot
1 month ago
1 month ago