Standard: YJT 4008
Available sizes: 4*20 to 4*35 (4 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| 4*20 | 3.84 | 6.95 | 3 | 4 | 2.54 | 26.05 | 1.47 | 6.7 | 23.95 |
| 4*25 | 3.84 | 6.95 | 3 | 4 | 2.54 | 36.25 | 1.87 | 6.7 | 33.75 |
| 4*30 |
| 3.84 |
| 6.95 |
| 3 |
| 4 |
| 2.54 |
| 46.25 |
| 2.32 |
| 6.7 |
| 43.75 |
| 4*35 | 3.84 | 6.95 | 3 | 4 | 2.54 | 51.25 | 2.55 | 6.7 | 48.75 |
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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