Standard: ASME B 18.2
Available sizes: 1 to 7/8 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 6 | 15/16 | 2.622 | 1.47 | 2-3/8 | 12 | 18 | 2.3 | 2.742 | 1.531 | 2.375 |
| 1/2 | 11 | 25/64 | 1.175 | 0.605 | 1-1/16 | 18 | 24 |
| 1.031 |
| 1.227 |
| 0.642 |
| 1.062 |
| 3/4 | 7 | 11/16 | 2.002 | 1.098 | 1-13/16 | 12 | 18 | 1.756 | 2.093 | 1.149 | 1.812 |
| 5/8 | 9 | 35/64 | 1.589 | 0.852 | 1-7/16 | 14 | 20 | 1.394 | 1.66 | 0.895 | 1.438 |
| 7/8 | 6 | 27/32 | 2.416 | 1.345 | 2-3/16 | 12 | 18 | 2.119 | 2.526 | 1.404 | 2.188 |
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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