Standard: DIN 3871 - 1995
Available sizes: 4 to 8 (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| 4 | LL | 1 | 4 | 6.215 | 6.14 | M10*1 | 13.2 | 12.8 | 6 | 13 |
| 5 | LL | 1 | 4.5 | 6.215 | 6.14 | M12*1.5 | 16.2 | 15.8 | 6 | 16 |
| 6 | L | 1.3 | 5.5 | 10.24 | 10.15 | M16*1.5 | 17.2 | 16.8 | 10 | 17 |
| 8 | L | 1.3 | 6 | 12.26 | 12.15 | M18*1.5 | 18.2 | 17.8 | 12 | 18 |
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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