DIN 982 Hex Thick Nuts with Non-Metallic Insert
DIN 982 hexagon thick nuts ("Tall NYLOC") with non-metallic nylon insert, M5 to M24 — the tall prevailing-torque lock nut whose nylon collar grips the bolt thread, with the collected per-size tables: pitches, d a, d w, e, h, m, m w and s, plus source mass rows.
Last updated: 2026-11
Specifications
DIN 982 is the tall nylon-insert lock nut: a hex nut with extra height h that carries a non-metallic (nylon) collar at the top. Running the bolt into the collar deforms the nylon around the threads, and that elastic interference is the prevailing torque — a lock that survives vibration and repeated reassembly without a separate lock washer or threadlocker, because the collar grips every time the thread passes through it. The tall body is the design point versus the thin DIN 985: more metal under the collar means the nut can carry the full clamp of the bolt before the nylon sees load, so DIN 982 suits joints where the lock nut is the working nut, not just a jam backup. The collected tables run M5 to M24 with coarse and fine pitch options per size, d a, bearing-face d w, e, overall height h (max/min), metal-body height m, m w and across-flats s, plus the source mass-per-1000 rows printed verbatim. Insert material temperature limits and finishes are not printed by the collected specification and stay per RFQ — a nylon collar has real temperature ceilings, so state the duty temperature at RFQ.
| Standard | DIN 982 — hexagon thick nuts with non-metallic insert (tall nylon-insert prevailing-torque lock nuts) |
|---|---|
| Series | M5 – M24 (four source column groups; coarse and fine pitch options tabulated per size) |
| Tabulated geometry | Per size: pitch (coarse / Fine thread 1/2 as printed), d a (min/max), d w (min), e (min, 8.79–39.55 mm), h (max/min, 6.3–28 mm), m (min), m w (min), s (max=nominal/min, 8–36 mm), source mass per 1000 units ≈ kg |
| Locking mechanism | Nylon collar deforms around the bolt thread — prevailing torque, reusable, no separate lock washer needed |
| Insert temp limit / finishes | Not tabulated by the collected specification — per RFQ (state duty temperature: the nylon collar defines the ceiling) |
| Attribute | M5 | M6 | M7 |
|---|---|---|---|
| Pitch — Pitch — Coarse thread | 0.8 | 1 | 1 |
| Fine thread 1 | / | / | / |
| Fine thread 2 | / | / | / |
| d a — min | 5 | 6 | 7 |
| max | 5.75 | 6.75 | 7.75 |
| d w — min | 6.9 | 8.9 | 9.6 |
| e — min | 8.79 | 11.05 | 12.12 |
| h — max=nominal size | 6.3 | 8 | 8.5 |
| min | 6 | 7.7 | 8.2 |
| m — min | 4.4 | 4.9 | 6.14 |
| m w — min | 3.52 | 3.92 | 4.91 |
| s — max=nominal size | 8 | 10 | 11 |
| min | 7.78 | 9.78 | 10.73 |
| per 1000 units ≈ kg | 1.4 | 3.1 | 3.2 |
| Attribute | M8 | M10 | M12 |
|---|---|---|---|
| Pitch — Pitch — Coarse thread | 1.25 | 1.5 | 1.75 |
| Fine thread 1 | 1 | 1 | 1.5 |
| Fine thread 2 | / | 1.25 | 1.25 |
| d a — min | 8 | 10 | 12 |
| max | 8.75 | 10.8 | 13 |
| d w — min | 11.6 | 15.6 | 17.4 |
| e — min | 14.38 | 18.9 | 21.1 |
| h — max=nominal size | 9.5 | 11.5 | 14 |
| min | 9.14 | 11.14 | 13.64 |
| m — min | 6.44 | 8.04 | 10.37 |
| m w — min | 5.15 | 6.43 | 8.3 |
| s — max=nominal size | 13 | 17 | 19 |
| min | 12.73 | 16.73 | 18.67 |
| per 1000 units ≈ kg | 6 | 11.7 | 16.6 |
| Attribute | M14 | M16 | M18 |
|---|---|---|---|
| Pitch — Pitch — Coarse thread | 2 | 2 | 2.5 |
| Fine thread 1 | 1.5 | 1.5 | 2 |
| Fine thread 2 | / | / | 1.5 |
| d a — min | 14 | 16 | 18 |
| max | 15.1 | 17.3 | 19.5 |
| d w — min | 20.5 | 22.5 | 24.9 |
| e — min | 24.49 | 26.75 | 29.56 |
| h — max=nominal size | 16 | 18 | 20 |
| min | 15.3 | 17.3 | 19.16 |
| m — min | 12.1 | 14.1 | 15.1 |
| m w — min | 9.68 | 11.28 | 12.08 |
| s — max=nominal size | 22 | 24 | 27 |
| min | 21.67 | 23.67 | 26.16 |
| per 1000 units ≈ kg | 21 | 37.8 | 51.6 |
| Attribute | M20 | M22 | M24 |
|---|---|---|---|
| Pitch — Pitch — Coarse thread | 2.5 | 2.5 | 3 |
| Fine thread 1 | 2 | 2 | 2 |
| Fine thread 2 | 1.5 | 1.5 | / |
| d a — min | 20 | 22 | 24 |
| max | 21.6 | 23.7 | 25.9 |
| d w — min | 27.7 | 29.5 | 33.2 |
| e — min | 32.95 | 35.03 | 39.55 |
| h — max=nominal size | 22 | 25 | 28 |
| min | 20.7 | 23.7 | 26.7 |
| m — min | 16.9 | 18.1 | 20.2 |
| m w — min | 13.52 | 14.48 | 16.16 |
| s — max=nominal size | 30 | 32 | 36 |
| min | 29.16 | 31 | 35 |
| per 1000 units ≈ kg | 68 | 86 | 127 |
Materials
- Body material and finish specified per RFQ; insert is non-metallic (nylon) per the standard — confirm duty temperature at quotation
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 982 Hex Thick Nuts with Non-Metallic Insert) 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 982 (tall) or DIN 985 (thin) nylon-insert lock nut?
By whether the lock nut carries the clamp or just backs it up. The tall DIN 982 body — the collected tables show h of 6.3 mm at M5 rising to 28 mm at M24, well above the thin series — puts enough steel between the joint face and the nylon collar that the nut can take the bolt's full preload with the collar still unloaded, so it is the pick where one nut does both jobs: clamping and locking. The thin DIN 985 suits tighter stack heights and lightly loaded covers. Both lock the same way — the collar grips the thread with prevailing torque, so neither needs a lock washer, and both lose grip as temperatures approach the nylon's limit. State your duty temperature and whether the nut is the working fastener at RFQ; the exact insert compound is confirmed per order.
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 sizes in this nut type are widely stocked; confirm the exact schedule against quantity and size mix at quotation.
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