Standard: JIS B 1171
Available sizes: M5 to M8 (3 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M5 | 1 | 10 | 11 | 15.45 | 6.48 | 18 | / | 4 | 3.4 | 16.55 | 7.2 |
| M6 | 1.5 | 17 | 18 | 23.35 | 10.58 | 26 | 32 |
| 6 |
| 5.4 |
| 24.65 |
| 12.2 |
| M8 | 1.75 | 23 | 24 | 31.2 | 12.7 | 30 | 36 | 8 | 7.2 | 32.8 | 14.7 |
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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