Standard: GB /T 10708.1 - 2000
Available sizes: 12 to 40 (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 12 | 8 | 4.85 | 5.15 | 16.8 | 15.5 | 5 | 17 | 15.3 | 5 | 17.2 | 15.7 |
| 16 | 17 | 4.85 | 5.15 | 25.85 | 24.4 | 5 | 26.1 | 24.15 | 5 | 26.35 | 24.65 |
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 |
| 35 |
| 6.05 |
| 6.35 |
| 51.15 |
| 49.2 |
| 9.5 |
| 51.5 |
| 48.85 |
| 6.2 |
| 51.85 |
| 49.55 |
| 25 | 48 | 8.85 | 9.15 | 64.15 | 62.2 | 9.5 | 64.5 | 61.85 | 9 | 64.85 | 62.55 |
| 32 | 30 | 6.05 | 6.35 | 40.95 | 39.4 | 6.3 | 41.2 | 39.15 | 6.2 | 41.45 | 39.65 |
| 40 | 46 | 6.05 | 6.35 | 57.15 | 55.4 | 6.3 | 57.5 | 55.05 | 6.2 | 57.85 | 55.75 |
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