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 | 0.042 | 0.059 | 0.051 | 0.104 | 0.226 | 0.211 | 0.018 | 1 | 0.061 | 0.058 |
| 3# | 0.1250 | 0.060 | 0.078 | 0.066 | 0.122 | 0.289 | 0.272 |
| 0.019 |
| 1 |
| 0.078 |
| 0.076 |
| 4# | 0.1640 | 0.063 | 0.088 | 0.088 | 0.166 | 0.384 | 0.364 | 0.029 | 2 | 0.102 | 0.086 |
| 5# | 0.2160 | 0.086 | 0.111 | 0.118 | 0.242 | 0.511 | 0.487 | 0.032 | 3 | 0.134 | 0.116 |
| 6# | 0.3125 | 0.148 | 0.173 | 0.162 | 0.346 | 0.698 | 0.666 | 0.059 | 4 | 0.183 | 0.180 |
| 8# | 0.3750 | 0.182 | 0.206 | 0.191 | 0.376 | 0.823 | 0.787 | 0.063 | 4 | 0.215 | 0.214 |
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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