Standard: SAE J 514
Available sizes: 1/2 to 5/8 (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 1 7/8 | 1.753 | 1.758 | 1.344 | 44.60 | 12 | 2 1/8 | 44.52 | 1.756 | 34.1 | 44.65 |
| 1/4 | 3/4 | 0.657 | 0.662 | 0.422 | 16.76 | 16 | 7/8 |
| 16.68 |
| 0.660 |
| 10.7 |
| 16.81 |
| 1/8 | 3/8 | 0.310 | 0.315 | 0.125 | 7.95 | 24 | 1/2 | 7.87 | 0.313 | 3.2 | 8.00 |
| 3/16 | 1/2 | 0.424 | 0.429 | 0.234 | 10.85 | 20 | 5/8 | 10.77 | 0.427 | 5.9 | 10.90 |
| 3/8 | 1 5/16 | 1.192 | 1.197 | 0.875 | 30.35 | 12 | 1 1/2 | 30.27 | 1.195 | 22.2 | 30.40 |
| 5/16 | 1 1/16 | 0.942 | 0.947 | 0.656 | 24.00 | 12 | 1 1/4 | 23.92 | 0.945 | 16.7 | 24.05 |
| 5/8 | 2 1/2 | 2.378 | 2.383 | 1.813 | 60.48 | 12 | 2 3/4 | 60.40 | 2.381 | 46.1 | 60.53 |
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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