Standard: ASME B 18.6
Available sizes: 0# to 6# (7 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| 0# | 0.0730 | 0.037 | 0.107 | 0.164 | 0.149 | 0.042 | 0.023 | 0.045 | 0.087 |
| 1# | 0.0990 | 0.051 | 0.151 | 0.226 | 0.211 | 0.066 | 0.028 | 0.061 | 0.122 |
| 2# |
| 0.1250 |
| 0.066 |
| 0.191 |
| 0.289 |
| 0.272 |
| 0.086 |
| 0.033 |
| 0.078 |
| 0.157 |
| 3# | 0.1510 | 0.081 | 0.231 | 0.352 | 0.333 | 0.108 | 0.038 | 0.094 | 0.192 |
| 4# | 0.1900 | 0.103 | 0.283 | 0.448 | 0.425 | 0.138 | 0.046 | 0.118 | 0.244 |
| 5# | 0.2500 | 0.133 | 0.375 | 0.573 | 0.546 | 0.174 | 0.057 | 0.150 | 0.314 |
| 6# | 0.3125 | 0.162 | 0.457 | 0.698 | 0.666 | 0.220 | 0.067 | 0.183 | 0.382 |
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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