Standard: ASME B 18.6
Available sizes: 2# to 8# (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2# | 0.0990 | 0.062 | 1 | 0.062 | 0.010 | 0.193 | 0.180 | 0.065 | 0.029 | 0.071 | 0.106 |
| 3# | 0.1250 | 0.068 | 2 | 0.079 | 0.015 | 0.245 | 0.231 |
| 0.075 |
| 0.040 |
| 0.089 |
| 0.148 |
| 4# | 0.1640 | 0.092 | 2 | 0.105 | 0.015 | 0.322 | 0.306 | 0.099 | 0.041 | 0.115 | 0.170 |
| 5# | 0.2160 | 0.117 | 3 | 0.139 | 0.025 | 0.425 | 0.407 | 0.130 | 0.056 | 0.151 | 0.248 |
| 6# | 0.3125 | 0.164 | 4 | 0.203 | 0.040 | 0.615 | 0.594 | 0.182 | 0.086 | 0.218 | 0.334 |
| 8# | 0.3750 | 0.201 | 4 | 0.244 | 0.040 | 0.740 | 0.716 | 0.219 | 0.086 | 0.261 | 0.370 |
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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