Standard: ASME B 18.2
Available sizes: 1-1/2 to 2-1/4 (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| 1-1/2 | 2.5000 | 2.401 | 2-1/2 | 3-7/8 | 3.750 | 4 | 4.275 | 4.474 | 8 | 3.875 |
| 1-1/4 | 1.5000 | 1.433 | 1-1/2 | 2-3/8 | 2.300 | 6 | 2.622 | 2.742 | 8 |
| 2.375 |
| 1-1/8 | 1.2500 | 1.187 | 1-1/4 | 2 | 1.938 | 7 | 2.209 | 2.309 | 8 | 2.000 |
| 1-3/4 | 3.0000 | 2.893 | 3 | 4-5/8 | 4.475 | 4 | 5.102 | 5.340 | 8 | 4.625 |
| 1-3/8 | 2.0000 | 1.925 | 2 | 3-1/8 | 3.025 | 4-1/2 | 3.449 | 3.608 | 8 | 3.125 |
| 2 | 3.5000 | 3.370 | 3-1/2 | 5-3/8 | 5.200 | 4 | 5.928 | 6.207 | 8 | 5.375 |
| 2-1/4 | 4.0000 | 3.862 | 4 | 6-1/8 | 5.925 | 4 | 6.755 | 7.073 | 8 | 6.125 |
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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