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 | 1.745 | 1.757 | 1.312 | 44.58 | 12 | 2 | 44.33 | 1.755 | 33.3 | 44.63 |
| 1/4 | 3/4 | 0.649 | 0.661 | 0.391 | 16.74 | 16 | 0.8125 | 16.49 | 0.659 | 9.9 | 16.79 |
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.
| 1/8 | 3/8 | 0.302 | 0.314 | 0.125 | 7.92 | 24 | 0.4375 | 7.67 | 0.312 | 3.2 | 7.97 |
| 3/16 | 1/2 | 0.416 | 0.428 | 0.234 | 10.82 | 20 | 0.5625 | 10.57 | 0.426 | 6 | 10.87 |
| 3/8 | 1 5/16 | 1.183 | 1.195 | 0.844 | 30.3 | 12 | 1.375 | 30.05 | 1.193 | 21.4 | 30.35 |
| 5/16 | 1 1/16 | 0.933 | 0.945 | 0.609 | 23.95 | 12 | 1.125 | 23.7 | 0.943 | 15.5 | 24 |
| 5/8 | 2 1/2 | 2.37 | 2.382 | 1.781 | 60.45 | 12 | 2.625 | 60.2 | 2.38 | 45.2 | 60.5 |
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