Standard: JIS B 1256
Available sizes: (Φ14) to Φ8 (8 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|
| (Φ14) | 30.0 | 6 | 7 | 30.84 | 98 | 95.8 | 5 |
| (Φ18) | 39.0 | 8 | 9.2 | 40 | 125 | 122.5 | 6.8 |
| Φ10 | 20.0 | 5 | 6 | 20.84 | 60 | 58.1 | 4 |
| Φ12 |
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.
| 24.0 |
| 6 |
| 7 |
| 24.84 |
| 80 |
| 78.1 |
| 5 |
| Φ16 | 36.0 | 8 | 9.2 | 37 | 115 | 112.8 | 6.8 |
| Φ5 | 6.6 | 2 | 2.3 | 6.96 | 22 | 20.7 | 1.7 |
| Φ6 | 11.0 | 3 | 3.6 | 11.43 | 34 | 32.4 | 2.4 |
| Φ8 | 15.5 | 4 | 4.6 | 15.93 | 50 | 48.4 | 3.4 |
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