Standard: ASME B 18.6
Available sizes: 2# to 5# (4 sizes)
| Standard Body | Standard Number |
|---|---|
| GB | GB /T 2671.2 |
| DIN | DIN EN ISO 14579 |
| ISO | ISO 14579 |
| 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 |
| 48 |
| T8 |
| 0.145 |
| 0.070 |
| 0.094 |
| 0.161 |
| 3# | 0.1250 | 0.120 | 0.078 | 0.055 | 0.045 | 40 | T10 | 0.187 | 0.088 | 0.111 | 0.205 |
| 4# | 0.1640 | 0.156 | 0.102 | 0.071 | 0.055 | 32 | T20 | 0.250 | 0.113 | 0.155 | 0.270 |
| 5# | 0.2160 | 0.205 | 0.134 | 0.090 | 0.070 | 24 | T27 | 0.334 | 0.148 | 0.200 | 0.357 |
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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