Standard: ASME B 18.2
Available sizes: 1 to 7/8 (8 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1.75 | 4 | 3.75 | 3.175 | 3.035 | 1.716 | 2.75 | 1.054 | 0.748 | 2.662 | 1.134 |
| 1-1/4 | 2.75 | 6 | — | 4.907 | 4.688 | 2.711 | 4.25 | 1.632 | 1.151 | 4.112 | 1.744 |
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.
| 1-1/8 | 2.25 | 5 | — | 4.041 | 3.862 | 2.214 | 3.5 | 1.327 | 0.933 | 3.388 | 1.423 |
| 1-3/8 | 3 | 6.5 | — | 5.34 | 5.102 | 2.961 | 4.625 | 1.815 | 1.290 | 4.475 | 1.935 |
| 1/2 | 0.625 | 1.75 | 1.5 | 1.227 | 1.175 | 0.605 | 1.062 | 0.378 | 0.269 | 1.031 | 0.403 |
| 3/4 | 1.125 | 2.75 | 2.5 | 2.093 | 2.002 | 1.098 | 1.812 | 0.658 | 0.461 | 1.756 | 0.718 |
| 5/8 | 0.875 | 2.25 | 2 | 1.66 | 1.589 | 0.852 | 1.438 | 0.531 | 0.378 | 1.394 | 0.563 |
| 7/8 | 1.375 | 3.25 | 3 | 2.526 | 2.416 | 1.345 | 2.188 | 0.81 | 0.569 | 2.119 | 0.878 |
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