Standard: KS B 2819 - 2025
Available sizes: 16 to 22 (3 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| 16 | 21 | 4.5 | 5 | 21.8 | 40 | 2 | 2 | 39 | 4 |
| 20 | 25 | 6 | 6.7 | 25.8 | 48 | 2.4 | 2.4 | 47 | 5.3 |
| 22 | 31 |
| 8 |
| 8.7 |
| 32 |
| 60 |
| 2.8 |
| 2.8 |
| 58.8 |
| 7.3 |
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.
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