Standard: ASTM F 3394 - 2023
Available sizes: 1/2 to 9/16 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| 1/2 | 0.585 | 0.110 | 0.180 | 0.700 | 1.10 | 1.20 | 1.30 | 1.00 |
| 3/4 | 1.306 | 0.158 | 0.260 | 1.500 | 2.40 | 2.40 | 2.70 | 2.10 |
| 5/8 | 1.043 | 0.136 | 0.220 | 1.200 | 1.90 | 1.90 | 2.20 | 1.70 |
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.
| 7/8 | 1.437 | 0.158 | 0.260 | 1.600 | 2.60 | 2.60 | 2.90 | 2.30 |
| 9/16 | 0.783 | 0.122 | 0.220 | 0.900 | 1.50 | 1.50 | 1.70 | 1.30 |
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