Disc Nut
Wing / disc nuts for tie rod ends, DIN-thread matched, high tensile.
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Disc Nut
Cast iron / ductile iron tie nut with flat bearing face rated to about 180 kN for rolled and hot-rolled tie rods. Standard sizes D12/D15/D20 with nut body diameters from D90 to D120, optional welded washer plate for heavy-duty systems, plain or galvanized.
Specifications
- D12 / D15 / D20 tie rods
- ~180 kN rated bearing
- Flat machined face
- Optional welded washer plate
- Plain or zinc plated
Engineering-reviewed quote within 24 hours.
Technical Specifications
| Thread | M12 / M15 / M20 |
| Material | Cast iron / ductile iron |
| Rating | ~180 kN |
| Body O D | D90 / D100 / D110 / D120 |
| Surface | Plain / zinc / HDG |
| Packaging | Bulk or pre-counted bags |
Material45# steel (QT450-10 ductile iron for some sleeve-type parts)
Surface FinishPlain (black) · Zinc plated
Rated LoadMatched to tie rod class — D15 system 150 kN, D20 system 230 kN
Unit WeightD20 × 50 × 110 disc nut: 0.92 kg · D15 × 100 disc: 0.53 kg
PackagingCartons on pallet · marked per BOM
Accessory Weights
| Name | Spec | Weight | Material | Surface |
|---|---|---|---|---|
| Tie rod (high strength) | D15 × 1000 | 1.5 kg | Q235 · 45# · 40Cr | Black / zinc / HDG |
| Tie rod (high strength) | D20 × 1000 | 2.6 kg | Q235 · 45# · 40Cr | Black / zinc / HDG |
| Tie rod section | D15 × 250 | 0.375 kg | 45# | Black / zinc |
| Wing nut (shanxing nut) | D15 | 0.32 kg | 45# / QT450-10 | Black / zinc |
| Wing nut (shanxing nut) | D20 | 0.8 kg | 45# / QT450-10 | Black / zinc |
| Connecting nut | D20 × 110 | 0.8 kg | QT450-10 / 45# | Zinc plated |
| Disc nut | D20 × 50 × 110 | 0.92 kg | QT450-10 | Black / zinc |
| Disc (round plate) | D15 × 100 | 0.53 kg | Q235 / 45# | Black |
| Square washer | 120 × 120 | 0.98 kg | Q235 | Black / zinc |
| Channel washer | 60 × 140 | 0.7 kg | Q235 / 45# | Black |
| Embedded plate | D20 × 67 × 96 | 0.6 kg | QT450-10 | Black / zinc |
| Cone (climbing) | D20 × 33 × 59 × 110 | 0.93 kg | 45# | Black / zinc |
| Waler fastener (backing plank clip) | D15 / 10# | 0.55 kg | 45# | Black / quenched version |
| Embedded foot bolt (single-sided) | D25 × 700 | 2.4 kg | HRB400 ribbed bar | Black / zinc |
| Hex nut | D15 / across-flats 23-25 | — | 45# | Black / zinc |
| Hex nut (tall) | D15 / height 37 / AF 25 | — | 45# | Black / zinc |
| Hex nut | D15 / across-flats 50-25 | — | 45# | Black / zinc |
| Hex nut | D20 / across-flats 23-31 | — | 45# | Black / zinc |
| Hex nut | D20 / across-flats 50-32 | — | 45# | Black / zinc |
Production Process
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06Material Grades Explained
| Grade | Notes |
|---|---|
| Q235 | Plain carbon steel. Economic option for light and medium formwork loads. Not heat treated. |
| 45# | Medium carbon steel. The standard formwork tie rod grade in China; quenchable to class 8.8. |
| 40Cr | Alloy steel. Higher hardenability and better fatigue performance than 45#; used where repeated reuse matters. |
| Class 10.9 bolt | Quenched and tempered alloy steel bolt used in the climbing cone set. Not electroplated without a documented baking cycle. |
| QT450-10 | Ductile (nodular) iron with 450 MPa tensile and 10% elongation. Used for sleeves and embedded plates where toughness and castability matter. |
| HRB400 | Hot-rolled ribbed bar (threaded steel) to Chinese standard. Used for embedded foot bolts; good bond with concrete. |
Applications
Procurement Guide
- Match nut body size to your panel hole and rod load
- Use with square base plate on timber panels
- For heavy loads, request the welded washer plate version
Procurement Information
- OEM / Custom
- Own drawing or label welcome
- MOQ
- Trial orders OK · mixed SKU welcome
- Lead time
- Stock 7-30d · Custom 20-35d
- Packaging
- Seaworthy: pallet + strapping + waterproof
- Payment
- T/T · L/C at sight
- Incoterms
- FOB Tianjin · CIF · CFR · EXW
Related Technical Reading
Related Products
Technical FAQ
Disc Nut — Answers for Engineers and Buyers
A formwork tie rod is a high-strength threaded bar that, together with nuts, anchor plates and walers, holds formwork panels against the lateral pressure of fresh concrete. It passes through the wall section and is either fully recovered after stripping (through-tie used with a sleeve) or permanently embedded (lost-end / water-stop type).