Standard: JIS B 1360
Available sizes: 4 to 8 (4 sizes)
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 1 | 5 | 1.5 | 0.5 | 3 | 6.5 | 9.5 | 2 | 2.5 | 17.9 |
| 5 | 1.6 | 8 | 2.4 | 0.8 | 4.8 | 10.4 | 15.2 | 3.2 | 4 | 27.7 |
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.
| 6 |
| 1.8 |
| 10.3 |
| 4.2 |
| 0.9 |
| 5.4 |
| 13.2 |
| 20.8 |
| 3.6 |
| 6 |
| 35.8 |
| 8 | 2 | 11.7 | 5 | 1 | 6 | 15 | 23.9 | 4 | 7 | 40.6 |
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