Standard: GB 5783 - 1986
Available sizes: M10 to M8 (7 sizes)
| Standard Body | Standard Number |
|---|---|
| EN | EN 24017 |
| GB | GB /T 5783 |
| IS | IS 1364(-2) |
| NF | NF E 25-114 |
| DIN | DIN EN ISO 4017 |
| ISO | ISO 4017 |
| UNI | UNI 5739 |
| ANSI | ANSI/ASME B 18.2.3.1M |
| Size | P | e | r | k_max | k_min | s_max |
|---|
| s_min |
|---|
| ds_max |
|---|
| ds_min |
|---|
| k_nominal |
|---|
| ds_nominal |
|---|
| M10 | 2.5 | 14 | 37.29 | 0.2 | 24.4 | 7.5 | 2.5 | 31.4 | 37.72 | 0.8 | 31.7 |
| M12 | 3 | 15 | 39.55 | 0.2 | 26.4 | 9 | — | 33.2 | 39.98 | 0.8 | 33.6 |
| M3 | 0.7 | 2.8 | — | 0.15 | 4.7 | 2.1 | — | — | 7.66 | 0.4 | 5.9 |
| M4 | 1 | 4 | 10.89 | 0.15 | 6.8 | 3 | — | 8.7 | 11.05 | 0.5 | 8.9 |
| M5 | 1.5 | 6.4 | 17.59 | 0.15 | 11.2 | 4.5 | — | 14.4 | 17.77 | 0.6 | 14.6 |
| M6 | 2 | 8.8 | 22.78 | 0.15 | 15.7 | 6 | 2 | 19.2 | 23.35 | 0.6 | 19.6 |
| M8 | 2.5 | 11.5 | 29.56 | 0.2 | 20.2 | 7.5 | 2.5 | 24.8 | 30.14 | 0.8 | 25.3 |
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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