Standard: JIS B 1115
Available sizes: 2 to 3.5 (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 4.5 | 1.05 | 0.9 | 1.6 | 6 | 4.1 | 1.7 | 0.66 | 0.8 | 1.8 | 0.9 |
| 2.5 | 6 | 1.45 | 1.25 | 2.15 | 8 | 5.5 | 2.3 |
| 0.86 |
| 1 |
| 2.45 |
| 1.3 |
| 3 | 8 | 1.85 | 1.6 | 2.75 | 11 | 7.4 | 2.9 | 1.06 | 1.2 | 3.05 | 1.7 |
| 3.5 | 10.5 | 2.4 | 2.1 | 3.7 | 14 | 9.8 | 3.9 | 1.66 | 1.86 | 4.1 | 2.3 |
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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