Standard: JIS B 1181 - 1993
Available sizes: (M14) to M8 (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (M14) | 3 | 47.3 | 40 | 21 | 16 | 2 | 22 | 15.1 | 41 | 23 | 16.9 |
| (M7) | 1.5 | 19.6 | 16.3 | 7.2 | 6 | 1.25 | 8 | 5.4 | 17 | 8.8 | 6.6 |
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.
| M10 |
| 2.5 |
| 31.2 |
| 26.2 |
| 14.1 |
| 11 |
| 1.5 |
| 15 |
| 10.1 |
| 27 |
| 15.9 |
| 11.9 |
| M12 | 2.5 | 37 | 31 | 17.1 | 13 | 1.5 | 18 | 12.1 | 32 | 18.9 | 13.9 |
| M16 | 3.5 | 53.1 | 45 | 23 | 18 | 2 | 24 | 17.1 | 46 | 25 | 18.9 |
| M6 | 1 | 12.7 | 10.3 | 4.9 | 4.2 | — | 5.5 | 3.6 | 11 | 6.1 | 4.8 |
| M8 | 2 | 25.4 | 21.2 | 10.1 | 8 | 1.5 | 11 | 7.2 | 22 | 11.9 | 8.8 |
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