A2 Stainless Steel Serrated Flange Nuts DIN 6923 Locking Nuts
💡 Fitting Tip:
No separate washer needed - the integral flange and serrations do both jobs at once.
A2 Stainless Steel Serrated Flange Nuts DIN 6923 Locking Nuts
✅ Suitable for: General Engineering and Vibration-Prone Assemblies
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DIN 6923 / ISO 4161
Serrated hexagon flange nut, cross-referenced to ISO 4161.
Integral Flange
Takes the place of a separate flat washer, spreading the clamping load over a wider bearing area.
Angled Under-Flange Serrations
Bite into the clamped surface for genuine mechanical self-locking under vibration, not just thread friction.
A2 Stainless Steel, Class A2-70
Reliable corrosion resistance indoor, outdoor, and in damp conditions.
Standard DIN 13 Metric Coarse Thread
Compatible with ordinary metric bolts, screws, and threaded rod.
Wide Flange
Lets the nut span slightly oversized or irregular clearance holes without the joint working loose.
Six Sizes M4-M12
Each matched to a specific spanner or socket width across flats.
Technical Specification
| Material | A2 Stainless Steel, Class A2-70 |
| Standard | DIN 6923 / ISO 4161 |
| Type | Serrated Flange Locknut |
| M4 (Pitch/Across Flats/FlangeØ/Height) | 0.7mm / 7mm / 10mm / 4.65mm |
| M5 (Pitch/Across Flats/FlangeØ/Height) | 0.8mm / 8mm / 11.8mm / 5mm |
| M6 (Pitch/Across Flats/FlangeØ/Height) | 1.0mm / 10mm / 14.2mm / 6mm |
| M8 (Pitch/Across Flats/FlangeØ/Height) | 1.25mm / 13mm / 17.9mm / 8mm |
| M10 (Pitch/Across Flats/FlangeØ/Height) | 1.5mm / 15mm / 21.8mm / 10mm |
| M12 (Pitch/Across Flats/FlangeØ/Height) | 1.75mm / 18mm / 26mm / 12mm |
