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 | 0.070 | 0.026 | 0.095 | 0.082 | 48 | 0.161 | 0.027 | 0.034 | 0.145 | 0.035 |
| 3# | 0.1250 | 0.088 | 0.033 | 0.120 | 0.106 | 40 | 0.205 |
| 0.035 |
| 0.042 |
| 0.187 |
| 0.043 |
| 4# | 0.1640 | 0.113 | 0.054 | 0.156 | 0.141 | 32 | 0.270 | 0.045 | 0.065 | 0.250 | 0.054 |
| 5# | 0.2160 | 0.148 | 0.074 | 0.205 | 0.188 | 24 | 0.357 | 0.056 | 0.087 | 0.334 | 0.067 |
| 6# | 0.3125 | 0.211 | 0.110 | 0.295 | 0.276 | 18 | 0.518 | 0.072 | 0.130 | 0.490 | 0.084 |
| 8# | 0.3750 | 0.253 | 0.134 | 0.355 | 0.333 | 16 | 0.622 | 0.081 | 0.154 | 0.590 | 0.094 |
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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