Standard: ASME B 18.6
Available sizes: 4# to 8# (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4# | 0.1250 | 0.188 | 0.058 | 0.043 | 0.035 | 20 | 0.105 | 0.028 | 0.076 | 1 | 0.049 |
| 5# | 0.1510 | 0.250 | 0.064 | 0.048 | 0.039 | 19 | 0.148 |
| 0.030 |
| 0.089 |
| 2 |
| 0.053 |
| 6# | 0.1900 | 0.312 | 0.102 | 0.060 | 0.050 | 16 | 0.178 | 0.052 | 0.127 | 2 | 0.080 |
| 7# | 0.2500 | 0.375 | 0.161 | 0.075 | 0.064 | 14 | 0.277 | 0.078 | 0.186 | 3 | 0.111 |
| 8# | 0.3750 | 0.562 | 0.243 | 0.094 | 0.081 | 12 | 0.386 | 0.161 | 0.267 | 4 | 0.168 |
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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