Standard: JIS B 1213
Available sizes: Φ1 to Φ2.3 (7 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| Φ1 | 1.25 | 2.1 | 0.7 | 1.18 | 2.2 | 0.6 | 0.06 | 2.3 | 0.8 |
| Φ1.2 | 1.67 | 2.9 | 1 | 1.58 | 3 | 0.9 | 0.09 | 3.1 | 1.1 |
| Φ1.4 | 2.08 |
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.
| 3.35 |
| 1.2 |
| 1.98 |
| 3.5 |
| 1.1 |
| 0.1 |
| 3.65 |
| 1.3 |
| Φ1.6 | 2.6 | 4.35 | 1.6 | 2.47 | 4.5 | 1.5 | 0.13 | 4.65 | 1.7 |
| Φ1.7 | 3.12 | 5 | 1.8 | 2.97 | 5.2 | 1.65 | 0.15 | 5.4 | 1.95 |
| Φ2 | 4.16 | 6.8 | 2.4 | 3.96 | 7 | 2.25 | 0.2 | 7.2 | 2.55 |
| Φ2.3 | 5.2 | 8.5 | 3 | 4.95 | 8.8 | 2.85 | 0.25 | 9.1 | 3.15 |
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