Standard: JIS B 1252
Available sizes: (14) to 8 (7 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| (14) | 28 | 5 | 5.14 | 28.35 | 41 | 5.9 | 40.5 | 4.86 |
| 10 | 21 | 3.5 | 3.61 | 21.35 | 31 | 4.25 | 30.5 | 3.39 |
| 12 | 25 | 4.5 | 4.64 | 25.35 | 37 |
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.
| 5.3 |
| 36.5 |
| 4.36 |
| 4 | 5.3 | 1 | 1.055 | 5.5 | 9 | 1.2 | 8.75 | 0.945 |
| 5 | 8.4 | 1.4 | 1.47 | 8.65 | 13.5 | 1.75 | 13.2 | 1.33 |
| 6 | 13 | 2 | 2.09 | 13.3 | 19 | 2.5 | 18.6 | 1.91 |
| 8 | 17 | 2.5 | 2.6 | 17.3 | 25 | 3.3 | 24.6 | 2.4 |
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