Comparação completa de padrões de fixadores mundial. Entenda os padrões DIN, ISO, ASTM, ANSI e BS para parafusos, porcas, parafusos e arruelas no comércio internacional.
Understanding Fastener Standards Systems
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Head Marking Comparison
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| Metric Grade | Tensile Strength (MPa) | Equivalent ASTM Grade | Head Marking |
|---|---|---|---|
| 4.8 | 400 | Grade 2 | None or 4.8 |
| 8.8 | 800 | Grade 5 | 8.8 |
| 10.9 | 1000 | Grade 8 | 10.9 |
| 12.9 | 1200 | Grade B | 12.9 |
Thread Standards: Metric vs UNC/UNF
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Common Standard Equivalents
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Perguntas Frequentes
See frequently asked questions below.
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