Standard: ASME B 18.27
Available sizes: 1 to 1.259 (8 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | NA13-102 | 0.062 | 0.032 | 0.042 | 0.044 | 1.136 | 1.151 | 0.033 | 0.034 | 1.126 | 0.040 |
| 1-1/16 | NA13-118 | 0.078 | 0.039 | 0.050 | 0.052 | 1.319 | 1.344 | 0.040 |
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.
| 0.041 |
| 1.299 |
| 0.048 |
| 1-1/4 | NA13-150 | 0.078 | 0.036 | 0.050 | 0.052 | 1.660 | 1.685 | 0.037 | 0.038 | 1.640 | 0.048 |
| 1-1/8 | NA13-125 | 0.078 | 0.038 | 0.050 | 0.052 | 1.388 | 1.413 | 0.039 | 0.040 | 1.368 | 0.048 |
| 1-3/16 | NA13-143 | 0.078 | 0.036 | 0.050 | 0.052 | 1.596 | 1.621 | 0.037 | 0.038 | 1.576 | 0.048 |
| 1.023 | NA13-112 | 0.078 | 0.039 | 0.050 | 0.052 | 1.249 | 1.274 | 0.040 | 0.041 | 1.229 | 0.048 |
| 1.181 | NA13-137 | 0.078 | 0.037 | 0.050 | 0.052 | 1.526 | 1.551 | 0.038 | 0.039 | 1.506 | 0.048 |
| 1.259 | NA13-156 | 0.078 | 0.047 | 0.062 | 0.065 | 1.734 | 1.769 | 0.048 | 0.049 | 1.709 | 0.059 |
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