Sliding Nuts with Spring Ball
XAHG21 · XAHG23 · XAHG31
Sliding nuts with spring ball combine the sliding installation method with a spring-loaded ball that retains the nut in the T-slot before tightening. The spring ball prevents displacement during assembly, making these ideal for overhead, inverted, and vertical mounting applications.

Thread Sizes
M4 – M8
Profile Series
20 – 50 mm (EU)
Retention
Spring Ball
Part Codes
XAHG21 / XAHG23 / XAHG31
Part Number System
Full part numbers are composed of: Code + Series + M
Code
XAHG21
Black anodized finish
XAHG23
Silver steel finish
XAHG31
Silver anodized finish
Series
EU profile series number (e.g. 308 = EU 30 Slot 8mm, 408 = EU 40 Slot 8mm).
M
Thread diameter (M4, M5, M6, M8).
Dimensions & Specifications
All dimensions in millimeters (mm).
Dimensions

| Code | Series | M | A | B | H | T | T1 | W | Compatible Profile |
|---|---|---|---|---|---|---|---|---|---|
| XAHB21 | 206 | 4 5 6 | 9.5 | 14 | 5.7 | 3 | 4.5 | 6 | EU 20 Slot 6mm |
| 308 | 4 5 6 8 | 16 | 20 | 9.3 | 6.3 | 7.8 | 8 | EU 30 Slot 8mm | |
| 408 | 4 5 6 8 | 17 | 22 | 11.5 | 6.6 | 9.6 | 8 | EU 40 Slot 8mm | |
| 4010 4510 5010 | 4 5 6 8 10 | 18 | 22 | 10.5 | 6 | 9 | 10 | EU 40/45/50 Slot 10mm |
Key Features
Spring Ball Retention
The spring-loaded ball holds the nut securely in the T-slot before fastener tightening, preventing displacement during overhead, inverted, and vertical assembly operations.
Sliding Installation
Insert from the profile end and slide to any position along the T-slot. The spring ball engages the slot walls to hold position until the fastener is tightened.
EU Profile Compatible
Designed for EU standard T-slot profiles from 20 to 50 series (206, 308, 408, 4010/4510/5010), covering the most widely used EU profile dimensions in industrial applications.
Precise Positioning
Slide to exact position before tightening, enabling precise alignment of brackets, panels, and accessories on aluminum profile frames.
Multiple Material Options
Available in zinc alloy (XAHG21, XAHG31) and steel (XAHG23) variants to match load requirements. Steel variants provide higher tensile strength for heavy-duty applications.
Efficient Assembly
Pre-position multiple nuts along the slot before installing fasteners, enabling efficient batch assembly of brackets, panels, and accessories on aluminum profile frames.
Typical Applications
Overhead & Inverted Assembly
The spring ball prevents nuts from falling out during overhead or inverted mounting operations, making these ideal for ceiling-mounted frames and inverted conveyor structures.
Automated Machine Frames
Secure brackets, panels, and accessories to EU profile machine frames with precise, adjustable positioning before final tightening.
Industrial Safety Guards
Mount safety guards and protective panels to EU profile frames in manufacturing environments where secure, vibration-resistant fastening is required.
Conveyor Systems
Fasten guide rails, sensor brackets, and structural accessories in EU profile conveyor and material handling systems.
Modular Workstations
Attach and precisely position work surface components, monitor arms, and accessories on adjustable EU profile workstation frames.
Cleanroom Equipment
Use in cleanroom frames and laboratory benches where corrosion resistance and spring-retained positioning are required.
Frequently Asked Questions
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