Standard: SAE J 513
Available sizes: 1/4 to 5/16 (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/4 | 5/8 -18 | 20.6 | 0.64 | 38.1 | 1.5 | 13/16 | 7.75 | 16.3 | 0.67 | 0.305 | 17 |
| 3/16 | 7/16 -20 | 15.7 | 0.45 | 33.3 | 1.31 | 5/8 | 4.57 |
| 11.4 |
| 0.47 |
| 0.18 |
| 11.9 |
| 3/8 | 1-1/16 -14 | 33.3 | 1.08 | 60.5 | 2.38 | 1-5/16 | 17.27 | 27.4 | 1.11 | 0.68 | 28.2 |
| 5/16 | 7/8 -14 | 26.9 | 0.9 | 50.8 | 2 | 1-1/16 | 14.1 | 22.9 | 0.93 | 0.555 | 23.6 |
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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