Standard: GB 838 - 1988
Available sizes: M10 to M8 (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 2 | 6 | 26.75 | 24 | 23.67 | 24 | 12 | 10.18 | 9.82 | 11.73 | 10 |
| M5 | 1 | 2 | 11.05 | 10 | 9.78 | 10 | 4.5 | 4.15 |
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.
| 3.85 |
| 4.32 |
| 4 |
| M6 | 1.5 | 3 | 17.77 | 16 | 15.73 | 15 | 7 | 6.58 | 6.22 | 6.78 | 6.4 |
| M8 | 2 | 5 | 23.35 | 21 | 20.67 | 20 | 11 | 8.98 | 8.62 | 10.73 | 8.8 |
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