Standard: ASME B 18.6
Available sizes: 2# to 8# (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2# | 0.0990 | 0.095 | 0.061 | 0.040 | 0.035 | 28 | T8 | 0.145 | 0.070 | 0.094 | 0.161 |
| 3# | 0.1250 | 0.120 | 0.078 | 0.055 | 0.045 | 20 | T10 |
| 0.187 |
| 0.088 |
| 0.111 |
| 0.205 |
| 4# | 0.1510 | 0.144 | 0.094 | 0.060 | 0.050 | 19 | T15 | 0.229 | 0.105 | 0.132 | 0.248 |
| 5# | 0.1900 | 0.180 | 0.118 | 0.090 | 0.070 | 16 | T25 | 0.292 | 0.130 | 0.178 | 0.313 |
| 6# | 0.2500 | 0.237 | 0.155 | 0.120 | 0.100 | 14 | T30 | 0.389 | 0.170 | 0.221 | 0.414 |
| 7# | 0.3750 | 0.355 | 0.233 | 0.155 | 0.135 | 12 | T45 | 0.590 | 0.253 | 0.312 | 0.622 |
| 8# | 0.5000 | 0.412 | 0.273 | 0.190 | 0.170 | 10 | T55 | 0.710 | 0.297 | 0.446 | 0.750 |
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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