DIN 6924 Nylon-Insert Lock Nuts
Nylon-insert (non-metallic insert) hex lock nuts per DIN 6924 — the full-height prevailing-torque pattern, M3 to M48 in steel classes 5/8/10 and A4 stainless, thread 6H. Current norm designation: DIN EN ISO 7040.
Last updated: 2026-11
Specifications
DIN 6924 is the full-height member of the nylon-insert lock-nut family: a non-metallic (nylon) collar grips the bolt threads by prevailing torque, the same locking principle as the DIN 985 nyloc — see that page for reuse and temperature behavior. The collected standard table runs M3 through M48 with thread tolerance 6H, in steel property classes 5, 8 and 10 and A4 stainless steel, so the size line reaches well past the usual nyloc range for larger assemblies. The national DIN 6924 designation is superseded: the current norm is DIN EN ISO 7040, so order whichever designation your drawing calls out.
| Standard | DIN 6924 — hexagon nut with non-metallic insert; current norm DIN EN ISO 7040 |
|---|---|
| Locking mechanism | Non-metallic (nylon) collar insert grips the bolt threads by prevailing torque |
| Size range | M3 – M48 |
| Dimensions at M10 | Width across flats 16 mm; e (min) 17.77 mm; height 11.5–11.9 mm |
| Thread | 6H |
| Grade pairing | Steel property classes 5, 8, 10; stainless A4 |
Materials
- Steel
- Stainless steel
Ordering & documentation
Documents
Shipments are backed by Mill Test Certificate (MTC), Dimensional Report, Salt Spray Test Report on request, with full batch traceability from raw material to finished product. Quality management follows the owner-confirmed compliance list: ISO 9001:2015, RoHS, REACH. Exact document sets are confirmed on the order.
Quotation
- The fastener family (DIN 6924 Nylon-Insert Lock Nuts) plus the standard designation from your drawing — DIN / ISO / JIS / ASTM / ANSI, or a drawing for custom parts.
- Size (diameter and length), thread type (metric or inch), property class or grade, and coating or finish.
- Quantity per size and your target delivery date.
- Destination country, and any required documents (for example a mill test certificate) so the quote includes them.
Sample & supply
Minimum order quantity is 10,000 pieces. Stock items run 3–7 days. Quantities or variants outside the standard range are confirmed at quotation.
Storage & shipping
Parts are packed for export and shipped factory-direct to buyers in Europe, Asia, the Americas and the Middle East. Store fasteners dry and protected until installation, and keep coated parts in their packaging until use; specific packing and preservation requirements can be stated on the order and confirmed at quotation.
Frequently asked questions
DIN 6924 or DIN 985 — is there a difference?
Both are nylon-insert prevailing-torque lock nuts; the collected standard table lists DIN 6924 (current norm DIN EN ISO 7040) as the full-height pattern running M3 to M48. The practical selection rule is the drawing: order the designation your documentation calls out, and confirm size and height pattern against the order — the nylon locking principle, its reuse behavior and its temperature ceiling are shared with the DIN 985 nyloc covered on that page.
What is the MOQ and lead time for this nut type?
The minimum order quantity is 10,000 pieces. Stock items ship in 3–7 days; non-stock items are confirmed at quotation. Common diameters in this nut type are widely stocked; confirm the exact schedule against quantity and size mix at quotation.
What should an RFQ for this nut type state?
State the standard designation (for example DIN 985 or DIN 6923), nominal thread size and pitch (metric coarse unless fine pitch is required), material and strength pairing with the mating bolt, finish (plain, zinc, or hot-dip galvanized where compatible), required certificates such as a mill test report per EN 10204 3.1, and quantity per size — plus destination country.
Related knowledge
- Pairing a Nut to a Bolt: Property Class, Flange vs Hex, and What the Evidence Actually Settles
- Pairing a Nut to a Bolt: Property Class, Height, Engagement and Flange vs Hex
- Thread Locking for Vibration: Nylon Patch, Threadlocker, Safety Wire or Lock Washer — What the Evidence Can Rank
- Pairing a Nut to a Bolt: Property Class, Flange vs Hex, and What the Evidence Actually Settles
Request a Quote
Get factory-direct pricing from the manufacturer.
What to include in your inquiry
- ✓ Standard and property class (e.g. DIN 912, ISO 4762, class 8.8) — or a drawing for custom parts.
- ✓ Sizes, lengths and thread type (metric or inch).
- ✓ Quantity per size and your target delivery date.
- ✓ Destination country, plus any coating or finish requirement.
- ✓ Any documents you need with the shipment (e.g. mill test certificate) so the quote includes them.
- ✓ Your inquiry goes straight to the factory team by email and gets a reply within 24 hours.
- ✓ Factory-direct pricing
- ✓ Standard and custom specifications
- ✓ Factory-direct export to buyers in Europe, Asia, the Americas and the Middle East
- ✓ Full fastener family support