Standard: YJT 8003
Available sizes: M4 to M8 (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M4 | 7 | 13.1 | 12.8 | 10.3 | 9.7 | 6.97 | 6.8 | 1.2 | 0.8 | 10 | 1 |
| M5 | 11 | 18.1 | 17.8 | 15.3 | 14.7 | 10.97 | 10.8 | 1.7 |
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.
| 1.3 |
| 15 |
| 1.5 |
| M6 | 12 | 20.3 | 20 | 17.3 | 16.7 | 11.97 | 11.8 | 2.2 | 1.8 | 17 | 2 |
| M8 | 15 | 23.3 | 23 | 19.3 | 18.7 | 14.97 | 14.8 | 2 | 1.6 | 19 | 1.8 |
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