Standard: DIN 1587 - 1987
Available sizes: M4 to M8 (4 sizes)
| Standard Body | Standard Number |
|---|---|
| GB | GB /T 923 |
| DIN | DIN 1587 |
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M4 | 0.8 | / | 1.6 | 5.75 | 7.5 | / | / | 8.79 | 8.63 | 5 | 6.8 |
| M5 | 1.25 | 2 | 2.5 | 8.75 | 12.5 | 1 | / | 14.38 |
Standard corrosion protection for indoor and mild outdoor environments.
Salt spray: 96–200 hours | RoHS compliant (trivalent chromium)
High-performance coating for automotive, marine, and harsh environments.
Salt spray: 720–1500 hours | Recommended for grade 8.8+
Heavy-duty protection for structural and outdoor applications.
Salt spray: 500–1000 hours | Thread tolerance adjustment required
Note for high-strength fasteners (Grade 10.9, 12.9): Electroplating processes require hydrogen embrittlement relief baking (minimum 4 hours at 200°C within 4 hours of plating). Contact our engineering team for grade-specific plating recommendations.
Request detailed technical specifications, material certifications, and availability information for your application requirements. Our engineering team can provide product recommendations, custom specifications, and technical documentation.
| 14.2 |
| 8 |
| 11.3 |
| M6 | 1.5 | 2 | 3 | 10.8 | 15 | 1 | 1.25 | 17.77 | 17.59 | 10 | 14.3 |
| M8 | 1.75 | / | / | 13 | 17 | 1.5 | 1.25 | 20.03 | 19.85 | 12 | 16.2 |
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