Standard: YJT 4001
Available sizes: 1/4 to 5/16 (3 sizes)
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| 1/4 | 0.31 | 56.699046 | 3.5 | 0.63 | 1.69 | 2.25 | 0.25 | 0.56 | 2.94 | 1.13 |
| 3/8 | 0.63 | 340.194278 | 6.44 | 1.25 | 3 | 4 | 0.5 | 1.12 | 5.31 | 2.25 |
| 5/16 | 0.5 | 170.097139 |
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.
| 5.12 |
| 1 |
| 2.44 |
| 3.25 |
| 0.38 |
| 0.91 |
| 4.25 |
| 1.75 |
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