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Screw nut
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Name | Dimension ((mm) | Screw thread | Accuracy of thread | Material | Mechanical Requirement |
Draw-in bolts for generate-electricity–by-fumes machine | φ28.5×470 | 1.125-12UNJF (MIL) | 3A | GH738 （waspaloy） High-temperature alloy steel GH738 (Imitate waspaloy) | (Room-temperature)σb≥1205MPa σ0.2≥828MPa 538℃: σb≥1064MPa σ0.2≥720MPa 732℃(endurance) (axial stress) 515MPa，≥23h (Fracture time≥23h) |
| Nuts | S50×H25.4 | 3B | |||
| Nuts | S50×H38 |
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