Standard: JIS B 1111
Available sizes: (M2.2) to M3 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (M2.2) | 0.5 | 1.72 | 1.34 | 2.05 | 1.75 | 6.9 | 6.4 | 1 | 2.9 | 1.9 | 4.6 |
| (M3.5) | 1.25 | 4.36 | 3.78 | 5 | 4.6 | 17.8 | 17 |
| 3 |
| 7.8 |
| 4.8 |
| 11.7 |
| M2 | 0.45 | 1.11 | 0.75 | 1.4 | 1.2 | 5 | 4.6 | 1 | 2.3 | 1.3 | 3.2 |
| M2.5 | 0.7 | 2.13 | 1.60 | 2.65 | 2.35 | 9.4 | 8.9 | 2 | 4.3 | 2.5 | 6.1 |
| M3 | 0.8 | 2.83 | 2.29 | 3.25 | 2.95 | 11.8 | 11.2 | 2 | 5 | 3.1 | 7.7 |
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.
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