Standard: GB /T 10708.3 - 2000
Available sizes: 10 to 8 (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 24 | 3.35 | 3.65 | 14.25 | 24 | 5 | 14.5 | 23.85 | 3.5 | 14.75 | 24.15 |
| 12 | 28 | 3.35 | 3.65 | 18.25 | 28 | 5 | 18.5 | 27.85 | 3.5 | 18.75 | 28.15 |
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.
| 14 | 33 | 3.35 | 3.65 | 23.25 | 33 | 5 | 23.5 | 32.85 | 3.5 | 23.75 | 33.15 |
| 16 | 40 | 3.35 | 3.65 | 30.25 | 40 | 5 | 30.5 | 39.85 | 3.5 | 30.75 | 40.15 |
| 6 | 16 | 3.35 | 3.65 | 6.45 | 16 | 5 | 6.6 | 15.85 | 3.5 | 6.75 | 16.15 |
| 8 | 20 | 3.35 | 3.65 | 10.45 | 20 | 5 | 10.6 | 19.85 | 3.5 | 10.75 | 20.15 |
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