Standard: ASME B 18.6
Available sizes: 10# to 8# (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 10# | 0.5000 | 0.319 | 0.335 | 0.170 | 0.155 | 13 | 0.446 | 1.146 | 1.101 | T55 | 0.790 |
| 2# | 0.0990 | 0.058 | 0.070 | 0.035 | 0.030 | 48 | 0.094 |
| 0.232 |
| 0.215 |
| T8 |
| 0.156 |
| 3# | 0.1250 | 0.075 | 0.088 | 0.045 | 0.035 | 40 | 0.111 | 0.291 | 0.272 | T10 | 0.198 |
| 4# | 0.1640 | 0.101 | 0.113 | 0.065 | 0.050 | 32 | 0.155 | 0.380 | 0.358 | T20 | 0.259 |
| 5# | 0.2160 | 0.134 | 0.148 | 0.080 | 0.065 | 24 | 0.200 | 0.498 | 0.473 | T27 | 0.341 |
| 6# | 0.3125 | 0.197 | 0.211 | 0.120 | 0.105 | 18 | 0.266 | 0.719 | 0.687 | T40 | 0.494 |
| 8# | 0.4375 | 0.278 | 0.294 | 0.150 | 0.135 | 14 | 0.352 | 1.004 | 0.963 | T50 | 0.691 |
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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