Standard: ASME B 18.6
Available sizes: 3# to 8# (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3# | 0.1120 | 82° | 0.038 | 0.033 | 0.028 | 24 | 00 | 0.191 | 0.047 | 0.050 | 0.212 |
| 4# | 0.1380 | 82° | 0.048 | 0.027 | 0.017 | 20 | 1S |
| 0.238 |
| 0.059 |
| 0.091 |
| 0.262 |
| 5# | 0.1640 | 82° | 0.058 | 0.037 | 0.027 | 18 | 2S | 0.285 | 0.070 | 0.112 | 0.312 |
| 6# | 0.2160 | 82° | 0.078 | 0.073 | 0.063 | 14 | 3S | 0.380 | 0.092 | 0.133 | 0.412 |
| 7# | 0.3125 | 82° | 0.116 | 0.100 | 0.085 | 12 | 4R | 0.556 | 0.134 | 0.191 | 0.597 |
| 8# | 0.3750 | 82° | 0.140 | 0.100 | 0.085 | 12 | 4R | 0.670 | 0.161 | 0.191 | 0.717 |
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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