Standard: GB 849 - 1988
Available sizes: 10 to 8 (6 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| 10 | 21.28 | 6.6 | 6.24 | 21 | 37 | 10 | 17.86 | 36.38 | 32 |
| 12 | 31.34 | 9.8 | 9.44 | 31 | 56 | 16 | 63.95 | 55.26 | 40 |
| 16 | 43.34 | 16 | 15.57 | 43 | 78 |
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.
| 24 |
| 211.9 |
| 77.26 |
| 63 |
| 20 | 50.34 | 20 | 19.48 | 50 | 92 | 30 | 376.5 | 91.13 | 70 |
| 6 | 8.6 | 4 | 3.7 | 8.4 | 17 | 5 | 2.52 | 16.57 | 12 |
| 8 | 13.24 | 5 | 4.7 | 13 | 24 | 7 | 5.93 | 23.48 | 20 |
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