Standard: ISO 8735 - 1998
Available sizes: Φ10 to Φ8 (5 sizes)
| Standard Body | Standard Number |
|---|---|
| EN | EN 28735 |
| GB | GB /T 120 |
| DIN | DIN EN ISO 8735 |
| ISO | ISO 8735 |
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| Φ10 | 20.021 | 1.5 |
| M10 |
| 1.5 |
| 20.008 |
| 2.5 |
| 18 |
| 28 |
| 6 |
| 10.5 |
| Φ12 | 30.021 | 2 | M20 | 2.5 | 30.008 | 4 | 30 | 40 | 7 | 21 |
| Φ16 | 50.025 | 2.5 | M24 | 3 | 50.009 | 6.3 | 36 | 50 | 10 | 25 |
| Φ6 | 8.015 | 1.2 | M5 | 0.8 | 8.006 | 1 | 8 | 12 | 2.6 | 5.3 |
| Φ8 | 12.018 | 1.2 | M6 | 1 | 12.007 | 1.6 | 12 | 20 | 3.8 | 6.4 |
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.
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