Standard: JB /T 7934 - 1999
Available sizes: 100 to 90 (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 100 | 190 | 69 | 62 | M12 | 15 | 65 | 79 | 18.5 | 93 | 91 | 264 |
| 110 | 210 | 69 | 60 | M12 | 16 | 65 | 79 | 23.27 |
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.
| 87 |
| 91 |
| 290 |
| 120 | 235 | 108 | 60 | M14 | 15 | 78 | 92 | 32.75 | 87 | 106 | 363 |
| 70 | 120 | 49 | 73 | M10 | 10 | 50 | 60 | 6.1 | 125 | 70 | 152 |
| 80 | 145 | 69 | 60 | M12 | 10 | 60 | 70 | 8.81 | 97 | 82 | 177 |
| 90 | 165 | 69 | 58 | M12 | 11 | 60 | 70 | 11.6 | 89 | 82 | 193 |
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