Standard: DIN 2991 - 1977
Available sizes: 1 to 3/8 (6 sizes)
| Size | P | k_max | s_max | s_min | k_nominal |
|---|---|---|---|---|---|
| 1 | 100 | 45 | 63 | 41 | 126 |
| 1/2 | 40 | 27 | 37 | 22 | 57 |
| 1/4 | 15 | 19 | 28 | 12 | 27 |
| 1/8 | 8 | 15 | 21 | 8 | 17.5 |
| 3/4 | 65 |
| 35 |
| 47 |
| 30 |
| 86 |
| 3/8 | 25 | 24 | 35 | 17 | 40.5 |
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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