Standard: JIS B 1220 - 2010
Available sizes: M16 to M30 (6 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| M16 | 2.5 | 500 | 510 | 18.2 | 18.07 | 68 | 18.33 | 60 |
| M20 | 3 | 600 | 610 | 21.85 | 21.69 | 82 | 22 | 72 |
| M22 | 3.5 | 750 | 760 | 27.51 |
| 27.34 |
| 100 |
| 27.67 |
| 90 |
| M24 | 4 | 900 | 910 | 33.17 | 32.99 | 121 | 33.34 | 108 |
| M27 | 4.5 | 1050 | 1070 | 38.83 | 38.64 | 139 | 39.01 | 126 |
| M30 | 5 | 1200 | 1220 | 44.48 | 44.28 | 157 | 44.68 | 144 |
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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