Standard: JB 982 - 1977
Available sizes: 10 to 8 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| 10 | 14.4 | 16 | 20 | 14.52 | 14.28 | 2.7 | M14(G1/4) | 16.24 | 19.72 |
| 12 | 18.4 | 20 | 25 | 18.52 | 18.28 | 2.7 | M18(G3/8) | 20.28 | 24.72 |
| 14 | 22.5 | 25 | 30 | 22.64 | 22.36 |
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.
| 2.7 |
| M22(G1/2) |
| 25.28 |
| 29.72 |
| 16 | 27.5 | 30 | 35 | 27.64 | 27.36 | 2.7 | M27(G3/4) | 30.28 | 34.66 |
| 8 | 10.4 | 12 | 16 | 10.52 | 10.28 | 2.7 | M10(G1/8) | 12.24 | 15.76 |
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