Standard: JB 974 - 1977
Available sizes: 10 to 6 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 18 | 32 | 32 | 27.6 | 27.4 | 10 | 19 | 33 | 51 | 27 | 21 |
| 14 | 28 | 41 | 41 | 36.6 | 36.4 | 20 | 28 |
| 39 |
| 57 |
| 36 |
| 24 |
| 18 | 42 | 60 | 60 | 52.6 | 52.4 | 32 | 42 | 48 | 68 | 52 | 28 |
| 22 | 50 | 70 | 70 | 60.6 | 60.4 | 40 | 50 | 54 | 74 | 60 | 30 |
| 6 | 10 | 19 | 22 | 16.6 | 16.4 | 6 | 11 | 25.5 | 44.5 | 16 | 16.5 |
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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