Standard: ASME B 18.6
Available sizes: 4# to 8# (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4# | 20 | T10 | 0.058 | 0.090 | 0.188 | 0.130 | 0.126 | 0.202 | 0.070 | 0.095 | 0.181 |
| 5# | 16 | T15 | 0.080 | 0.108 | 0.250 | 0.158 | 0.152 |
| 0.272 |
| 0.093 |
| 0.114 |
| 0.244 |
| 6# | 12 | T25 | 0.105 | 0.126 | 0.312 | 0.194 | 0.188 | 0.340 | 0.120 | 0.133 | 0.305 |
| 7# | 10 | T30 | 0.172 | 0.178 | 0.375 | 0.254 | 0.248 | 0.409 | 0.190 | 0.185 | 0.367 |
| 8# | 9 | T45 | 0.270 | 0.282 | 0.562 | 0.390 | 0.383 | 0.614 | 0.295 | 0.291 | 0.551 |
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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