Standard: ASME B 18.6
Available sizes: 0# to 6# (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0# | 0.0730 | 0.145 | 0.153 | 0.067 | 0.040 | 64 | 0 | 0.043 | 0.027 | 0.067 | 0.023 |
| 1# | 0.0990 | 0.197 | 0.208 | 0.102 | 0.061 | 48 | 1 |
| 0.059 |
| 0.043 |
| 0.103 |
| 0.044 |
| 2# | 0.1250 | 0.249 | 0.263 | 0.137 | 0.064 | 40 | 2 | 0.059 | 0.041 | 0.141 | 0.040 |
| 3# | 0.1640 | 0.326 | 0.344 | 0.174 | 0.103 | 32 | 2 | 0.097 | 0.079 | 0.179 | 0.079 |
| 4# | 0.2160 | 0.430 | 0.454 | 0.253 | 0.134 | 24 | 3 | 0.125 | 0.107 | 0.260 | 0.109 |
| 5# | 0.3125 | 0.622 | 0.656 | 0.332 | 0.175 | 18 | 4 | 0.163 | 0.145 | 0.343 | 0.152 |
| 6# | 0.3750 | 0.746 | 0.788 | 0.380 | 0.227 | 16 | 4 | 0.213 | 0.195 | 0.393 | 0.203 |
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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