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T-Slot Inside Corner Connectors

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Inside corner connectors for T-slot aluminum extrusions are internal fasteners that create clean, hidden 90-degree joints. Unlike external brackets, these connectors are concealed within the profiles, offering a sleek look without protrusions. Many standard inside corner connectors can be installed quickly without any special preparation, simply by sliding them into the T-slots and tightening set screws. This makes them ideal for building professional-looking frames and enclosures.

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Product SKUs information
Item Code Price range Availability Series Width Type Length Brand View
$33.85 - $33.85 36 In stock
10 Series
1.000 in
Inside Corner
1.000 in
80/20 Inc
$7.56 - $7.56 Request the lead time here
45 Series
0.748 in
Dual Support
1.496 in
80/20 Inc
$10.71 - $10.71 Request the lead time here
Multiple Series
0.992 in
Inside Corner
0.992 in
80/20 Inc
$6.37 - $6.37 Request the lead time here
Multiple Series
0.480 in
Inside Corner
1.000 in
80/20 Inc
$7.56 - $7.56 Request the lead time here
Multiple Series
0.621 in
Lite
1.181 in
80/20 Inc
$7.56 - $7.56 Request the lead time here
45 Series
0.748 in
Wide Slotted
1.496 in
80/20 Inc
$9.25 - $9.25 400 In stock
40 Series
0.625 in
Inside Corner
2.5 in
80/20 Inc
Inside Corner Bracket; , 4042-BLACK

AES-4042BLK

Price Range
$33.85 - $33.85

Stock Levels
36 In stock
Attributes
  • Type
    Inside Corner
  • Series
    10 Series
  • Length
    1.000 in
  • Width
    1.000 in
  • Hole Diameter
    0.257 in
Quick View
View Product >
Inside Corner Bracket; Thread Size=M8 x 12, 33530

AES-33530

Price Range
$7.56 - $7.56

Stock Levels
Request the lead time here
Attributes
  • Type
    Dual Support
  • Series
    45 Series
  • Length
    1.496 in
  • Width
    0.748 in
  • Thickness
    0.343 in
Quick View
View Product >
Inside Corner Bracket; , 14154

AES-14154

Price Range
$10.71 - $10.71

Stock Levels
Request the lead time here
Attributes
  • Type
    Inside Corner
  • Series
    Multiple Series
  • Length
    0.992 in
  • Width
    0.992 in
  • Hole Diameter
    0.283 in
Quick View
View Product >
Inside Corner Bracket; Thread Size=M5 x 0.8, 33460

AES-33460

Price Range
$6.37 - $6.37

Stock Levels
Request the lead time here
Attributes
  • Type
    Inside Corner
  • Series
    Multiple Series
  • Length
    1.000 in
  • Width
    0.480 in
  • Thickness
    0.258 in
Quick View
View Product >
Inside Corner Bracket; Thread Size=M6 x 12, 33470

AES-33470

Price Range
$7.56 - $7.56

Stock Levels
Request the lead time here
Attributes
  • Type
    Lite
  • Series
    Multiple Series
  • Length
    1.181 in
  • Width
    0.621 in
  • Thickness
    0.313 in
Quick View
View Product >
Inside Corner Bracket; Thread Size=M8 x 12, 33490

AES-33490

Price Range
$7.56 - $7.56

Stock Levels
Request the lead time here
Attributes
  • Type
    Wide Slotted
  • Series
    45 Series
  • Length
    1.496 in
  • Width
    0.748 in
  • Thickness
    0.343 in
Quick View
View Product >
Inside Corner Bracket; Thread Size=1/4-20, 40-3368

AES-403368

Price Range
$9.25 - $9.25

Stock Levels
400 In stock
Attributes
  • Type
    Inside Corner
  • Series
    40 Series
  • Length
    2.5 in
  • Width
    0.625 in
  • Thickness
    0.436 in
Quick View
View Product >