GB G306
- Material
- Q235 carbon steel
- Part-number group
- XAHQ21 / XAHQ22 / XAHQ23
- Threads included
- M5, M6
XAHQ21, XAHQ22 and XAHQ23 are post-assembly roll-in T-nuts for listed GB 30–40 and EU 30–40 profile rows. Tilt and roll the nut into the slot at the required position without profile-end access. The variants are carbon steel with zinc, nickel, or chrome plating.

Thread Sizes
M5 – M8
GB & EU Profile Options
GB 30–40 / EU 30–40
Installation
Post-Assembly Family
Part Codes
XAHQ21 / XAHQ22 / XAHQ23
Full part numbers are composed of: Code + Series + M
XAHQ21
Carbon steel — zinc plated
XAHQ22
Carbon steel — nickel plated
XAHQ23
Carbon steel — chrome plated
Profile Series: G306 (GB 30, 6 mm) · 308 (EU 30, 8 mm)
Thread Sizes: M5, M6, M8
All dimensions in millimeters (mm).

| Code | Series | M | A | B | T | Compatible Profile |
|---|---|---|---|---|---|---|
| XAHQ21 XAHQ22 XAHQ23 | G306 | 5 6 | 8.9 | 15 | 4.7 | GB 30 Slot 6mm |
| G408 308 408 | 5 6 8 | 12.3 | 19 | 5.3 | GB 40 Slot 8mm EU 30/40 Slot 8mm |
Technical documentation
Select the matching profile series, material and part-number group. Open the PDF for a quick review or download the DWG for CAD use.
PDF files open in a new tab. DWG files download directly. Dimensions are in millimeters; verify the selected series and thread before use.
Tilt and roll the nut into the slot at the required position after the frame is assembled. Profile-end access is not required.
Variants are listed for GB 30–40 and EU 30–40 profile series.
Compare the listed A, B, and T values with the selected profile series and slot geometry before ordering.
Choose by GB or EU profile series, slot opening, and the listed M5, M6, or M8 thread options.
XAHQ21, XAHQ22 and XAHQ23 are carbon steel with zinc, nickel and chrome plating respectively.
This family has no spring ball or spring leaf. Support the nut during vertical positioning until the bolt begins to engage.
Add fastening points to compatible assembled frames after confirming the selected profile, installation method, and complete fastening arrangement.
Secure brackets, panels, and accessories to EU profile machine frames in CNC machining centers, robot cells, and automated assembly lines.
Mount safety guards and protective panels to compatible profile frames after confirming the fastening requirements.
Fasten guide rails, sensor mounts, and structural accessories in EU profile conveyor and material handling systems.
Attach and reposition work surface components, tool holders, and accessories on adjustable EU profile workstation frames.
Mount display panels, lighting, and signage where the listed profile series and fastening dimensions are suitable.
Related Products

XAHJ21 · XAHJ23
Roll-in T-Nuts with Spring Ball
Post-assembly XAHJ roll-in T-nuts for listed EU profiles. Tilt and roll them into the slot; the spring ball provides temporary holding force before tightening.

XAHN21 · XAHN23 …
Sliding Nuts
End-feed XAHN sliding nuts for listed GB and EU profiles. Insert them from an open profile end and slide them to position; select by profile, slot opening, thread, finish, and dimensions.

XAHB21
Sliding Nuts with Spring Ball
End-feed XAHB21 sliding nuts for listed EU profiles. Insert them from an open profile end; the spring ball provides temporary holding force before tightening.

XAHV21 · XAHV23 …
T-Nuts with Spring Leaf
Post-assembly XAHV T-nuts for listed EU 30–50 profiles. Tilt and roll them into the slot; the spring leaf provides temporary holding force before tightening.
Use the installation method, profile access and exact product row to narrow the selection.
Send the product code, quantity, profile details, destination, and required documents for source review and quotation