Standard: JIS B 1181 - 2014
Available sizes: (M14) to M8 (6 sizes)
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| (M14) | 3 | 39 | 16 | 15.3 | 2 | 22 | 40 | 47.3 | 21.16 | 41 |
| (M7) | 1.5 | 16.5 | 6 | 5.52 | 1.25 | 8 | 16.3 | 19.6 | 7.42 | 17 |
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 | 26 | 11 | 10.3 | 1.5 | 15 | 26.2 | 31.2 | 14.3 | 27 |
| M12 | 2.5 | 31 | 13 | 12.3 | 1.5 | 18 | 31 | 37 | 17.3 | 32 |
| M6 | 1 | 10.8 | 4.2 | 3.72 | — | 5.5 | 10.3 | 12.7 | 5.02 | 11 |
| M8 | 2 | 21 | 8 | 7.42 | 1.5 | 11 | 21.2 | 25.4 | 10.3 | 22 |
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