Standard: ASME B 18.3
Available sizes: 0# to 5# (6 sizes)
| Size | P | e | k_max | k_min | s_max | s_min | ds_max | ds_min | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| 0# | 0.073 | 0.05 | 0.073 | 0.0695 | 64 | 72 | 0.143 | 0.054 | 0.168 |
| 1# | 0.099 | 0.062 | 0.099 | 0.0949 | 48 | 56 | 0.193 | 0.073 | 0.226 |
| 2# | 0.125 |
| 0.078 |
| 0.125 |
| 0.1202 |
| 40 |
| 44 |
| 0.24 |
| 0.09 |
| 0.281 |
| 3# | 0.164 | 0.094 | 0.164 | 0.1585 | 32 | 36 | 0.311 | 0.112 | 0.359 |
| 4# | 0.2158 | 0.125 | 0.2158 | 0.2102 | 24 | 28 | 0.41 | 0.135 | 0.45 |
| 5# | 0.3125 | 0.188 | 0.3125 | 0.3053 | 18 | 24 | 0.6 | 0.198 | 0.656 |
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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