Standard: ASME B 18.2
Available sizes: 1/2 to 7/8 (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 11 | 0.6 | 1.25 | 1.175 | 0.403 | 1.062 | 1.031 | 0.642 | 0.605 | 1.227 | 0.378 |
| 3/4 | 7 | 0.9 | 2 | 2.002 | 0.718 | 1.812 | 1.756 |
| 1.149 |
| 1.098 |
| 2.093 |
| 0.658 |
| 5/8 | 9 | 0.72 | 1.5 | 1.589 | 0.563 | 1.438 | 1.394 | 0.895 | 0.852 | 1.66 | 0.531 |
| 7/8 | 7 | 1 | 2 | 2.209 | 0.813 | 2 | 1.938 | 1.277 | 1.223 | 2.309 | 0.749 |
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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