Standard: JIS F 3022 - 1978
Available sizes: 15 to 80 (8 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min |
|---|---|---|---|---|---|---|---|---|---|
| 15 | 15 | 5 | 40 | 45 | 53 | 10 | M10 | 20 | 30 |
| 20 | 23 | 5 | 40 | 60 | 68 | 10 | M10 | 20 | 30 |
| 25 | 32 | 5 | 40 | 78 | 86 | 10 | M10 |
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.
| 20 |
| 30 |
| 32 | 46 | 6 | 50 | 110 | 120 | 12 | M12 | 25 | 35 |
| 40 | 59 | 8 | 65 | — | — | 16 | M16 | — | — |
| 50 | 85 | 8 | 65 | — | — | 16 | M16 | — | — |
| 65 | 111 | 9 | 75 | — | — | 20 | M20 | — | — |
| 80 | 124 | 9 | 75 | — | — | 20 | M20 | — | — |
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