Standard: JIS B 2801 - 1996
Available sizes: 34 to 42 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 34 | 42 | 5.5 | 5 | 9 | 17 | 58 | 155 | 4 | 24 | 17 | 16 |
| 36 | 48 | 5.5 | 5 | 10 | 19 | 64 | 172 | 4 | 26 |
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.
| 19 |
| 18 |
| 38 | 54 | 5.5 | 5 | 11 | 20 | 72 | 188 | 4 | 28 | 20 | 19 |
| 40 | 58 | 5.5 | 6 | 11 | 21 | 77 | 204 | 4 | 30 | 21 | 20 |
| 42 | 60 | 5.5 | 6 | 12 | 21 | 79 | 211 | 4 | 30 | 21 | 20 |
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