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 | 44.60 | 0.755 | 0.750 | 0.755 | 12 | 19.05 | 19.18 | 0.750 | 19.18 | 19.05 |
| 1/4 | 3/4 | 16.76 | 0.318 | 0.313 | 0.318 | 16 | 7.95 |
| 8.08 |
| 0.313 |
| 8.08 |
| 7.95 |
| 1/8 | 3/8 | 7.95 | 0.130 | 0.125 | 0.130 | 24 | 3.18 | 3.31 | 0.125 | 3.31 | 3.18 |
| 3/16 | 1/2 | 10.85 | 0.193 | 0.188 | 0.193 | 20 | 4.78 | 4.91 | 0.188 | 4.91 | 4.78 |
| 3/8 | 1 5/16 | 30.35 | 0.630 | 0.625 | 0.630 | 12 | 15.88 | 16.01 | 0.625 | 16.01 | 15.88 |
| 5/16 | 1 1/16 | 24.00 | 0.568 | 0.563 | 0.568 | 12 | 14.30 | 14.43 | 0.563 | 14.43 | 14.30 |
| 5/8 | 2 1/2 | 60.48 | 0.755 | 0.750 | 0.755 | 12 | 19.05 | 19.18 | 0.750 | 19.18 | 19.05 |
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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