Square Nuts
XAHE21 · XAHE31
Square nuts are designed for GB standard T-slot profiles. The square body provides a larger contact surface within the T-slot channel compared to hammer head designs, distributing clamping force over a wider area for improved load distribution. Available for GB 30 and GB 40 series profiles.
Thread Sizes
M4 – M8
Profile Series
GB 30 & GB 40
Body Shape
Square
Part Codes
XAHE21 / XAHE31
Part Number System
Full part numbers are composed of: Code + Series + M
Code
XAHE21
Black anodized finish
XAHE31
Silver anodized finish
Series
GB profile series number (G306 = GB 30 Slot 6mm, G408 = GB 40 Slot 8mm).
M
Thread diameter (M4, M5, M6, M8).
Dimensions & Specifications
All dimensions in millimeters (mm).
Dimensions
| Code | Series | M | A | T | Compatible Profile |
|---|---|---|---|---|---|
| XAHE21 | G306 | 4 5 6 | 10 | 5 | GB 30 Slot 6mm |
| XAHE21 | G408 | 4 5 6 8 | 13.9 | 5.5 | GB 40 Slot 8mm |
| XAHE31 | G306 | 5 6 | 10 | 5 | GB 30 Slot 6mm |
| XAHE31 | G408 | 6 8 | 13.9 | 5.5 | GB 40 Slot 8mm |
Key Features
Square Body Design
The square body provides a larger contact surface within the GB T-slot channel, distributing clamping force over a wider area for improved load distribution compared to hammer head designs.
GB Profile Compatible
Designed specifically for GB standard T-slot profiles — GB 30 Slot 6mm (G306) and GB 40 Slot 8mm (G408) — the most common GB profile dimensions in Chinese industrial applications.
High Load Capacity
The larger contact surface and square body geometry provide excellent resistance to rotation and pull-out under high clamping loads.
End-Feed Installation
Insert from the profile end and slide to the desired position. The square body prevents rotation within the slot, ensuring the thread remains aligned for fastener installation.
Precise Dimensional Tolerances
Machined to tight tolerances for consistent engagement with GB profile T-slots, ensuring reliable clamping force and repeatable assembly quality.
Silver & Black Finish
Available in XAHE21 (black anodized) and XAHE31 (silver anodized) finishes for aesthetic flexibility in visible frame assemblies.
Typical Applications
GB Profile Machine Frames
Secure brackets, panels, and accessories to GB standard aluminum profile machine frames in Chinese industrial manufacturing environments.
Industrial Safety Guards
Mount safety guards and protective panels to GB profile frames where high clamping force and rotation resistance are required.
Conveyor Systems
Fasten guide rails, sensor brackets, and structural accessories in GB profile conveyor and material handling systems.
Modular Workstations
Attach work surface components, monitor arms, and accessories to adjustable GB profile workstation frames.
Exhibition Structures
Mount display panels, lighting, and signage on GB profile exhibition stands and trade show booths.
General Industrial Assembly
Use as a versatile fastening solution for any GB 30 or GB 40 series aluminum profile application requiring secure, rotation-resistant nut retention.
Frequently Asked Questions
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