Standard: ASME B 18.3 - 2003
Available sizes: 0# to 5# (6 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_nominal |
|---|---|---|---|---|---|---|---|
| 0# | 0.0730 | 0.035 | 0.060 | 64.0 | 72.0 | 0.033 | 0.040 |
| 1# | 0.0990 | 0.050 | 0.070 | 48.0 | 56.0 | 0.045 | 0.054 |
| 2# | 0.1250 | 0.062 | 0.080 | 40.0 | 44.0 | 0.057 | 0.067 |
| 3# | 0.1640 | 0.078 | 0.090 | 32.0 | 36.0 | 0.076 | 0.087 |
| 4# | 0.2500 | 0.125 | 0.125 | 20.0 | 28.0 | 0.118 | 0.132 |
| 5# | 0.3750 | 0.188 | 0.188 | 16.0 | 24.0 | 0.194 | 0.212 |
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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