Standard: ISO 8740
Available sizes: (Φ1) to Φ3 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| (Φ1) | 1.5 | 1.68 | 1.63 | 1.475 | 0.6 | 1.65 | 1.6 | 1.63 | 1.6 |
| Φ1.5 | 2.5 | 2.75 | 2.65 | 2.475 | 1 | 2.7 | 2.6 | 2.7 | 2.65 |
| Φ2 | 3.5 | 3.75 | 3.65 | 3.425 | 1.3 |
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.
| 3.725 |
| 3.625 |
| 3.7 |
| 3.675 |
| Φ2.5 | 5 | 5.3 | 5.2 | 4.925 | 1.7 | 5.25 | 5.15 | 5.25 | 5.2 |
| Φ3 | 7 | 7.35 | 7.25 | 6.91 | 2.4 | 7.275 | 7.175 | 7.3 | 7.225 |
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