Standard: KS B 2819 - 2025
Available sizes: M16 to M22 (3 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M16 | 20 | 14.4 | 14.1 | 34 | 13 | 20.8 | 19.6 | 12.1 | 18 | 33 | 13.9 |
| M20 | 24 | 17.1 | 16.8 | 43 | 15 | 24.8 | 23.6 |
| 14.1 |
| 20 |
| 41 |
| 15.9 |
| M22 | 30 | 21.4 | 21.1 | 55 | 19 | 30.8 | 29.6 | 18 | 24 | 53 | 20 |
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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