Standard: DIN 172 - 1992
Available sizes: 1.8＜d≤2.6 to d≥1 (7 sizes)
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| 1.8＜d≤2.6 | 8 | 1 | 8.019 | 8.01 | 12 | 16 | 2.5 | 1 | 8 | 11 |
| 1＜d≤1.8 | 8 | 1 | 6.016 | 6.008 | 12 | 16 | 2.5 | 1 | 6 |
| 9 |
| 2.6＜d≤3.3 | 10 | 1.5 | 12.023 | 12.012 | 16 | 20 | 3 | 1.25 | 12 | 15 |
| 3.3＜d≤4 | 12 | 2 | 18.023 | 18.012 | 20 | 25 | 4 | 1.5 | 18 | 22 |
| 4＜d≤5 | 16 | 2 | 26.028 | 26.015 | 28 | 36 | 4 | 1.5 | 26 | 30 |
| 5＜d≤6 | 20 | 3 | 30.028 | 30.015 | 36 | 45 | 5 | 2.5 | 30 | 34 |
| d≥1 | 6 | 1 | 4.016 | 4.008 | 9 | / | 2 | 1 | 4 | 7 |
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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