Standard: JB 981 - 1977
Available sizes: 10 to 6 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| 10 | M27*1.5 | 20 | 32 | 19 | 12 | 36.9 | 15 | 31.66 |
| 14 | M36*2 | 22 | 41 | 28 | 14 | 47.3 | 17 | 40.66 |
| 18 | M52*2 | 29 | 60 | 42 | 19 | 69.3 | 23 | 59.6 |
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.
| 22 |
| M60*2 |
| 33 |
| 70 |
| 50 |
| 22 |
| 80.8 |
| 26 |
| 69.6 |
| 6 | M16*1.5 | 14.5 | 19 | 11 | 8.5 | 21.9 | 11.5 | 18.72 |
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