Standard: DIN 28135 - 1987
Available sizes: 25 to 45 (5 sizes)
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| 25 | 6 | 0.078 | 5 | 35 | 43 | M10 | 20 | 22 | 6 | 10 |
| 30 | 8 | 0.183 | 5 | 35 | 53 | M16 | 34 | 36 | 6 | 15 |
| 35 | 12 | 0.337 | 6 | 38 | 63 | M16 | 34 | 36 | 8 | 15 |
| 40 | 14 | 0.542 | 6 | 45 | 73 | M20 | 40 | 42 | 8 | 18 |
| 45 | 18 | 1.041 | 7 | 55 | 93 | M20 | 40 | 42 | 10 | 25 |
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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