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 | 15.1 | 30 | / | 16 | 34.6 | 16.9 | 29.2 |
| M20 | 3 | 18 | 36 | 2 | 19 | 41.6 | 20 | 35 |
| M22 | 3.5 | 23 | 46 | 2 | 24 | 53.1 | 25 | 45 |
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.
| M24 |
| 4 |
| 28 |
| 55 |
| 3 |
| 29 |
| 63.5 |
| 30 |
| 53.8 |
| M27 | 4.5 | 32.8 | 65 | 3 | 34 | 75 | 35.2 | 63.8 |
| M30 | 5 | 36.8 | 75 | 4 | 38 | 86.5 | 39.2 | 73.8 |
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