Standard: JB /T 7934 - 1999
Available sizes: 140 to 165 (3 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 140 | 263 | 20 | 100 | M12×60 | 15 | 115 | 66 | 633 | 36.4 | 80 | 7 |
| 155 | 300 | 29 | 240 | M16×65 | 10 | 135 | 72 | 924 |
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.
| 62.4 |
| 88 |
| 8 |
| 165 | 330 | 47 | 240 | M16×80 | 15 | 140 | 92 | 1100 | 77 | 112 | 10 |
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