Standard: JIS B 1170 - 2011
Available sizes: (M14) to M24 (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (M14) | 2.5 | 14.3 | 14.57 | 20.16 | 13 | 1.5 | 21 | 12.3 | 15 | 20.48 | 12.57 |
| (M18) | 3 | 21.16 | 21.48 | 29.16 | 16 | 2 | 30 | 15.3 | 22 | 29.48 | 15.57 |
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.
| (M22) | 4 | 30 | 30.38 | 39 | 23 | 3 | 40 | 22.16 | 31 | 39.38 | 22.48 |
| M12 | 2 | 10.3 | 10.57 | 15.3 | 11 | 1.5 | 16 | 10.3 | 11 | 15.57 | 10.57 |
| M16 | 2.5 | 17.3 | 17.57 | 25.16 | 13 | 1.5 | 26 | 12.3 | 18 | 25.48 | 12.57 |
| M20 | 3.5 | 25.16 | 25.48 | 34 | 20 | 2 | 35 | 19.16 | 26 | 34.38 | 19.48 |
| M24 | 4.5 | 35 | 35.38 | 47 | 27 | — | 48 | 26.16 | 36 | 47.38 | 26.48 |
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