+86 (0) 159 5016 9967
sales@fullerkr.com
FULLERKREG DIN 6926 hex flange nylon insert lock nuts in low carbon steel (Q195) offer a cost-effective prevailing torque locking solution for general industrial and structural applications. The wide bearing flange distributes clamping load over a larger surface area, reducing the risk of pull-through in thin or soft materials. The non-metallic nylon insert grips the bolt thread to resist loosening under vibration without the need for thread-locking adhesives. The smooth, non-serrated flange face protects mating surfaces from marking. Finished with trivalent chromium (Cr3) zinc plating for reliable corrosion protection in indoor and light outdoor environments.
| Standard | DIN 6926 |
| Type | Hex Flange Nylon Insert Lock Nut — Non-Serrated (Smooth Bottom) |
| Material | Low Carbon Steel Q195 |
| Strength Class | Class 4 |
| Surface Treatment | Zinc Plated — Trivalent Chromium Cr3 (RoHS Compliant) |
| Flange Type | Non-Serrated (Smooth Flange / Smooth Bottom) |
| Thread | Metric Coarse Thread (ISO 68-1) |
| Size Range | M5 – M20 |
| Drive Type | Hex (Wrench / Spanner) |
| Locking Mechanism | Nylon Insert (Prevailing Torque) |
| Reusability | Limited (nylon insert degrades with repeated use) |
| Operating Temp. | −30 °C to +120 °C (nylon insert limit) |
| RoHS Compliance | Yes — Cr3 trivalent zinc plating, hexavalent chromium (Cr6) free |
| Property | Details |
|---|---|
| Plating Type | Electrolytic Zinc + Trivalent Chromate Passivation (Cr3) |
| Typical Thickness | 5 – 8 µm |
| Salt Spray Resistance | ≥ 72 hours (white rust) per ISO 9227 |
| Appearance | Bright silver / light blue iridescent |
| RoHS / ELV | Compliant — no hexavalent chromium (Cr6) |
| Suitable Environment | Indoor, light outdoor, general industrial |
All dimensions per DIN 6926. Tolerances per ISO 4759-1.
| Thread d |
Pitch p (mm) |
Wrench s (mm) |
Flange Dia. dc (mm) |
Nut Height m (mm) |
e min (mm) |
Nylon Height n (mm) |
Max Proof Load (kN) |
Unit Weight (g/pc) |
|---|---|---|---|---|---|---|---|---|
| M5 | 0.80 | 8 | 11.8 | 5.0 | 8.79 | 2.4 | — | ~2.3 |
| M6 | 1.00 | 10 | 14.2 | 6.0 | 11.05 | 2.9 | — | ~4.2 |
| M8 | 1.25 | 13 | 17.9 | 8.0 | 14.38 | 3.5 | — | ~8.8 |
| M10 | 1.50 | 15 | 21.8 | 10.0 | 16.64 | 4.0 | — | ~15 |
| M12 | 1.75 | 18 | 26.0 | 12.0 | 20.03 | 4.8 | — | ~25 |
| M14 | 2.00 | 21 | 29.9 | 14.0 | 23.36 | 5.1 | — | ~37 |
| M16 | 2.00 | 24 | 34.5 | 16.0 | 26.75 | 5.8 | — | ~56 |
| M20 | 2.50 | 30 | 42.8 | 20.0 | 32.95 | 7.2 | — | ~107 |
* Unit weights are approximate reference values based on low carbon steel density (7.85 g/cm³). Actual weight may vary ±5% due to nylon insert and manufacturing tolerances. Contact FULLERKREG for certified weight data if required.
| Application Scenario | Recommended Size | Notes |
|---|---|---|
| General machinery & equipment | M5 – M16 | Cost-effective locking for standard assemblies |
| Automotive body & interior panels | M6 – M12 | Smooth flange prevents surface marking on panels |
| Sheet metal / thin-wall structures | M5 – M10 | Wide flange distributes load, reduces pull-through |
| Electrical cabinets & enclosures | M5 – M10 | Nylon insert adds electrical insulation benefit |
| HVAC & ductwork | M8 – M16 | Vibration resistance without adhesives |
| Furniture & light structural | M6 – M12 | Economy grade, suitable for non-critical joints |
These nuts are manufactured to DIN 6926 (Prevailing torque type hexagon nuts with flange and with non-metallic insert). DIN 6926 covers steel materials in property classes 5, 8, 10, and 12; this product is supplied in Class 4 (low carbon steel Q195), suitable for general-purpose non-critical fastening applications. The non-serrated (smooth) flange face distinguishes this product from DIN 6923 (serrated flange). The nylon insert provides prevailing torque per ISO 2320.
Related standards: DIN 985 (non-flanged nylon lock nut) · DIN 6923 (serrated flange hex nut) · ISO 2320 (prevailing torque nuts) · ISO 4759-1 (tolerances) · ISO 9227 (salt spray test)
DIN 6926 Non-Serrated Flange Nylon Lock Nuts — Class 4 Zinc Plated (Cr3)
| [Photo 1] | [Photo 2] | [Photo 3] | [Photo 4] |
🏭 Direct Manufacturer — No middlemen. Factory-direct pricing on all standard and custom fasteners.
📐 DIN Precision — Every batch produced and inspected to DIN 6926 dimensional requirements.
🔩 RoHS-Compliant Plating — Cr3 trivalent zinc plating; no hexavalent chromium (Cr6), fully EU RoHS / ELV compliant.
📦 Flexible MOQ & Bulk Packaging — From sample packs to pallet quantities; custom labeling and kitting available.
🌍 Global Wholesale Supply — Experienced in export documentation, HS code classification, and international logistics.
⚡ Fast Quotation — Submit your BOM or inquiry and receive a competitive quote within 24 hours.
6 Products
20% off all Cordless tool kits.
Fresh picks for your outdoor space, just in.