Standard: JIS B 2804
Available sizes: 2 to 5 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| 2 | 2.35 | 0.64 | 0.56 | 2.4 | 2.27 | 1.9 | 0.9 | 0.6 | 1.2 |
| 2.5 | 3.8 | 0.84 | 0.76 | 3.85 | 3.7 | 2.7 | 1.2 | 0.8 | 1.8 |
| 3 |
| 5.7 |
| 1.05 |
| 0.95 |
| 5.78 |
| 5.62 |
| 3.2 |
| 1.4 |
| 1 |
| 2.4 |
| 4 | 7.7 | 1.05 | 0.95 | 7.8 | 7.6 | 3.5 | 1.4 | 1 | 3 |
| 5 | 9.65 | 1.26 | 1.14 | 9.75 | 9.55 | 4.7 | 1.6 | 1.2 | 3.5 |
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.
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