Standard: YJT 7005
Available sizes: 16 to 21 (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 16 | 0.6 | 0.7 | 17.95 | 18.17 | 3.7 | 0.55 | 18.3 | 1.7 | 17.8 | 18.72 | 2.2 |
| 17 | 0.8 | 0.9 | 20.15 | 20.37 | 3.8 | 0.75 | 20.5 | 2 | 20 | 20.92 | 2.3 |
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.
| 18 | 1 | 1.1 | 22.15 | 22.37 | 4 | 0.94 | 22.5 | 2 | 22 | 22.92 | 2.4 |
| 19 | 1.2 | 1.3 | 24.25 | 24.47 | 4.1 | 1.14 | 24.6 | 2 | 24.1 | 25.02 | 2.6 |
| 20 | 1.2 | 1.3 | 26.41 | 26.69 | 4.4 | 1.14 | 26.9 | 2 | 26.2 | 27.32 | 2.8 |
| 21 | 1.2 | 1.3 | 28.61 | 28.89 | 4.5 | 1.14 | 29.1 | 2 | 28.4 | 29.52 | 2.9 |
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