Standard: JIS B 2808
Available sizes: Φ1 to Φ3 (8 sizes)
| Size | e | k_min | s_min | ds_min | k_nominal |
|---|---|---|---|---|---|
| Φ1 | 0.56 | 1.1 | 1.4 | 0.12 | 1.3 |
| Φ1.2 | 0.87 | 1.4 | 1.7 | 0.15 | 1.6 |
| Φ1.4 | 1.55 | 1.9 | 2.25 | 0.2 | 2.15 |
| Φ1.5 | 3.49 | 2.9 | 3.25 | 0.3 | 3.15 |
| Φ1.6 | 6.21 |
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.
| 3.9 |
| 4.4 |
| 0.5 |
| 4.2 |
| Φ2 | 9.7 | 4.8 | 5.4 | 0.5 | 5.2 |
| Φ2.5 | — | — | — | 0.75 | — |
| Φ3 | — | — | — | 1 | — |
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