Standard: GB /T 5782 - 2025
Available sizes: (M3.5) to M6 (8 sizes)
| Standard Body | Standard Number |
|---|---|
| EN | EN 24014 |
| GB | GB /T 5782 |
| IS | IS 1364-1 |
| NF | NF E 25-112 |
| DIN | DIN EN ISO 4014 |
| ISO | ISO 4014 |
| UNI | UNI 5737 |
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (M3.5) | 1.25 | 11.63 | 7.64 | 0.6 | 0.15 | 22 | 28 | 8 | 7.78 | 41 | 9.2 |
| M1.6 | 0.4 | 3.34 | 1.75 | 0.25 | 0.1 | 10 | 16 | 2 |
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.
| 1.86 |
| 29 |
| 2.6 |
| M2 | 0.5 | 4.84 | 2.75 | 0.4 | 0.15 | 12 | 18 | 3 | 2.86 | 31 | 3.6 |
| M2.5 | 0.7 | 6.2 | 3.7 | 0.4 | 0.15 | 14 | 20 | 4 | 3.82 | 33 | 4.7 |
| M3 | 1 | 8.88 | 5.7 | 0.5 | 0.15 | 18 | 24 | 6 | 5.82 | 37 | 6.8 |
| M4 | 1.75 | 16.63 | 11.57 | 0.6 | 0.15 | 30 | 36 | 12 | 11.73 | 49 | 13.7 |
| M5 | 2 | 22.49 | 15.57 | 0.8 | 0.2 | 38 | 44 | 16 | 15.73 | / | 17.7 |
| M6 | 2.5 | 25.34 | 17.57 | 0.8 | 0.2 | 42 | 48 | 18 | 17.73 | / | 20.2 |
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