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# | 0.099 | 82° | 1/8 | 0.059 | 0.070 | 48 | 0.187 | 0.028 | 0 | 0.167 | 0.038 |
| 3# | 0.125 | 82° | 3/16 | 0.075 | 0.091 | 40 | 0.237 |
| 0.040 |
| 1S |
| 0.215 |
| 0.055 |
| 4# | 0.164 | 82° | 1/4 | 0.100 | 0.112 | 32 | 0.312 | 0.048 | 2S | 0.285 | 0.063 |
| 5# | 0.216 | 82° | 3/8 | 0.132 | 0.133 | 24 | 0.412 | 0.080 | 3R | 0.380 | 0.095 |
| 6# | 0.313 | 82° | 1/2 | 0.191 | 0.191 | 18 | 0.597 | 0.085 | 4R | 0.556 | 0.100 |
| 8# | 0.375 | 82° | 9/16 | 0.230 | 0.191 | 16 | 0.717 | 0.085 | 4R | 0.670 | 0.100 |
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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