Standard: ASME B 16.20 - 2012
Available sizes: 20 to 31 (7 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| 20 | 93.27 | 3.48 | 25.4 | 11.91 | 6.45 | 2.0 | 1.0 | 4.24 | 1.5 |
| 23 | 109.55 | 2.42 | 19.05 | 8.74 | 4.62 | 2.0 | 1.0 | 3.18 | 1.5 |
| 24 | 118.26 | 3.48 | 25.4 | 11.91 | 6.45 |
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.
| 2.0 |
| 1.0 |
| 4.24 |
| 1.5 |
| 25 | 147.24 | 3.48 | 25.4 | 11.91 | 6.45 | 2.0 | 1.0 | 4.24 | 1.5 |
| 26 | 172.64 | 3.48 | 25.4 | 11.91 | 6.45 | 2.0 | 1.0 | 4.24 | 1.5 |
| 27 | 204.39 | 3.48 | 25.4 | 11.91 | 6.45 | 2.0 | 1.0 | 4.24 | 1.5 |
| 31 | 222.25 | 4.02 | 28.58 | 13.49 | 6.68 | 2.0 | 1.0 | 4.78 | 1.5 |
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