Standard: JIS B 1180
Available sizes: (M18) to M24 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (M18) | 2.5 | 21.48 | 22 | 56 | 69 | / | 1.5 | 0.2 | 24.4 | 50 | 0.8 |
| (M22) | 3.5 | 32.38 | 33 | 78 | 91 | / | 2 |
| 0.2 |
| 36.4 |
| / |
| 0.8 |
| M16 | 2.5 | 17.57 | 18 | 48 | / | / | 1.5 | 0.2 | 20.2 | 42 | 0.8 |
| M20 | 3 | 26.48 | 27 | 66 | 79 | / | 2 | 0.2 | 30.4 | 60 | 0.8 |
| M24 | 4 | 35.38 | 36 | 84 | 97 | 3 | / | 0.2 | 39.4 | / | 0.8 |
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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