Standard: ASME B 18.27
Available sizes: 1/2 to 9/16 (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | NA10-56 | 0.088 | 0.040 | 0.035 | 0.037 | 0.521 | 0.526 | 0.042 | 0.052 | 0.511 | 0.033 |
| 11/16 | NA10-93 | 0.136 | 0.048 | 0.042 | 0.044 | 0.867 | 0.872 | 0.050 |
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.
| 0.060 |
| 0.857 |
| 0.040 |
| 19/32 | NA10-75 | 0.112 | 0.040 | 0.042 | 0.044 | 0.693 | 0.698 | 0.042 | 0.052 | 0.683 | 0.040 |
| 3/4 | NA10-100 | 0.144 | 0.048 | 0.042 | 0.044 | 0.925 | 0.930 | 0.050 | 0.060 | 0.915 | 0.040 |
| 5/8 | NA10-81 | 0.120 | 0.048 | 0.042 | 0.044 | 0.751 | 0.756 | 0.050 | 0.060 | 0.741 | 0.040 |
| 9/16 | NA10-62 | 0.096 | 0.040 | 0.035 | 0.037 | 0.579 | 0.584 | 0.042 | 0.052 | 0.569 | 0.033 |
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