Standard: ASME B 18.2
Available sizes: 1 to 7/8 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1.568 | 0.280 | 2.937 | 1.577 | 2.138 | 2.937 | 3.250 | 0.158 | 3.000 |
| 1/2 | 0.651 | 0.220 | 1.281 | 0.658 | 0.956 | 1.281 | 1.625 | 0.126 | 1.375 |
| 3/4 |
| 1.174 |
| 0.280 |
| 2.187 |
| 1.183 |
| 1.631 |
| 2.187 |
| 2.500 |
| 0.158 |
| 2.250 |
| 5/8 | 0.914 | 0.260 | 1.718 | 0.921 | 1.294 | 1.718 | 2.000 | 0.142 | 1.875 |
| 7/8 | 1.437 | 0.280 | 2.687 | 1.446 | 1.969 | 2.687 | 3.000 | 0.158 | 2.750 |
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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