Standard: ASME B 18.6
Available sizes: 1/4 to 7/16 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/4 | 0.375 | 0.94 | 0.125 | 0.293 | 0.270 | 0.362 | 0.530 | 0.279 | 0.041 | 0.497 | 0.294 |
| 10# | 0.250 | 0.62 | 0.100 | 0.196 | 0.178 | 0.241 | 0.354 | 0.170 |
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.
| 0.032 |
| 0.331 |
| 0.185 |
| 3/8 | 0.625 | 1.56 | 0.182 | 0.485 | 0.452 | 0.606 | 0.884 | 0.492 | 0.059 | 0.833 | 0.507 |
| 5/16 | 0.500 | 1.25 | 0.154 | 0.389 | 0.361 | 0.484 | 0.707 | 0.385 | 0.050 | 0.665 | 0.400 |
| 7/16 | 0.750 | 1.88 | 0.200 | 0.582 | 0.544 | 0.729 | 1.060 | 0.605 | 0.065 | 1.001 | 0.620 |
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