Standard: JIS B 1112
Available sizes: 2.1 to 3.5 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2.1 | 1.1 | 1.7 | 1.9 | 0.1 | 4.4 | 2.4 | 2.47 | 4.2 | 1.8 | 2.33 | 4.6 |
| 2.4 | 1.3 | 2.15 | 2.45 | 0.2 | 5.7 | 3.1 | 3.17 |
| 5.45 |
| 2.3 |
| 3.03 |
| 5.95 |
| 2.7 | 1.6 | 2.55 | 2.85 | 0.2 | 7 | 3.8 | 3.9 | 6.75 | 2.7 | 3.7 | 7.25 |
| 3.1 | 1.9 | 2.95 | 3.25 | 0.3 | 8.3 | 4.5 | 4.6 | 8 | 3.1 | 4.4 | 8.6 |
| 3.5 | 2.1 | 3.15 | 3.45 | 0.3 | 8.9 | 4.8 | 4.92 | 8.6 | 3.3 | 4.68 | 9.2 |
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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