L-Shape Cast Interior Joint Brackets
Cast L-shape interior joint brackets for concealed profile connections. XADQ21 is S45C with zinc plating, and XADQ31 is SUS304 with vibratory polishing.
Material
S45C / SUS304
Part Codes
XADQ21 / XADQ31
Profile Compatibility
EU 20–40 · GB 30–40
Available Series
5 Standard Series
Product Variants
The listed hole configurations, materials, and finishes vary by product code. Other requests require a drawing, quantity, and source confirmation.
XADQ21S45C · Zinc PlatedS45C Material Variant
XADQ21 is the zinc-plated S45C variant. The specification table lists the applicable 2-hole and 4-hole mounting patterns by profile series.
XADQ31SUS304 · Vibratory PolishedSUS304 Material Variant
XADQ31 is the vibratory-polished SUS304 variant. The specification table lists the applicable 2-hole and 4-hole mounting patterns by profile series.
Part Number System
Full part numbers are composed of: Code + Series + M + Reinforced
Series designation encodes slot width and profile dimensions. Example: 308 = EU 30 mm profile, Slot 8 mm. M value is the screw hole diameter. Mounting-pattern suffix: – for the listed 2-hole pattern and S for the listed 4-hole pattern.
Dimensions & Series Compatibility
All dimensions in millimeters (mm). XADQ21 and XADQ31 identify the material and finish; "–" indicates the listed 2-hole pattern and "S" the listed 4-hole pattern.
L-Shape Cast Interior Joint Brackets — All Series
| Code | Series | M | Pattern | A | B | C | C1 | E | T | W | W1 | No. of Holes | Compatible Profile |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| XADQ21 XADQ31 | 206 | 5 | — | 30 | 30 | 20 | — | 20 | 5 | 6 | 10 | 2 | EU 20 Slot 6mm |
| 206 | 5 | S | 30 | 30 | 15 | 10 | 15 | 5 | 6 | 10 | 4 | ||
| G306 | 5 | S | 30 | 30 | 15 | 10 | 15 | 9 | 6 | 10 | 4 | GB 30 Slot 6mm | |
| 308 | 6 | — | 31 | 38 | 25 | — | 22 | 7.5 | 8 | 14.5 | 2 | EU 30 Slot 8mm | |
| 308 | 6 | S | 40 | 45 | 25 | 13 | 20 | 7.5 | 8 | 14.5 | 4 | ||
| G408 | 6 | — | 40 | 44 | 27 | 10 | 23 | 10 | 8 | 12.5 | 4 | GB 40 Slot 8mm | |
| 408 | 6 | — | 31 | 38 | 25 | — | 22 | 8 | 8 | 18 | 2 | EU 40 Slot 8mm | |
| 408 | 6 | S | 40 | 45 | 25 | 13 | 20 | 8 | 8 | 18 | 4 | ||
| 4010 | 8 | — | 31 | 38 | 25 | — | 22 | 8 | 10 | 18.5 | 2 | EU 40 Slot 10mm | |
| 4010 | 8 | S | 40 | 45 | 25 | 13 | 20 | 8 | 10 | 18.5 | 4 |
Key Features
S45C and SUS304 Variants
XADQ21 is zinc-plated S45C and XADQ31 is vibratory-polished SUS304, as identified by product code.
2-Hole and 4-Hole Patterns
The specification table lists 2-hole and 4-hole mounting patterns. Select the variant by product code, profile series, and dimensions.
Listed Profile Series
Variants are listed for the compatible EU and GB profile series shown in the specification table.
Concealed Interior Joint
L-shape geometry fits flush inside the profile corner, providing a clean, concealed joint without protruding hardware on the exterior.
90° Interior Geometry
Select the listed bracket geometry and dimensions for the intended concealed corner connection.
OEM & Custom Options
Submit drawings, quantity, material, and finish requirements for source review and confirmation.
Typical Applications
Machine Frame Corners
Reinforce interior corner joints of aluminum profile machine frames and equipment enclosures for improved structural rigidity.
Automation Cell Structures
Strengthen interior joints in conveyor frames, robotic cell enclosures, and automated equipment structures requiring concealed hardware.
Workstation & Rack Frames
Add concealed interior corner support to modular workbenches, server rack frames, and ergonomic workstation structures.
Technical FAQ
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Ready to Source L-Shape Cast Interior Joint Brackets?
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