Standard: DIN 933 - 1987
Available sizes: (M3.5) to M5 (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 |
|---|
| (M3.5) | 1.25 | 5.15 | 5.3 | 9.2 | 11.6 | 3.75 | 0.15 | 14.38 | 14.2 | 0.6 | 11.4 |
| M1.6 | 0.4 | 1.28 | 1.4 | 2.6 | 3.2 | 1.2 | 0.1 | 4.32 | — | 0.25 | — |
| M2 | 0.5 | 1.88 | 2 | 3.6 | 4.6 | 1.5 | 0.15 | 6.01 | — | 0.4 | — |
| M2.5 | 0.7 | 2.68 | 2.8 | 4.7 | 5.9 | 2.1 | 0.15 | 7.66 | 7.5 | 0.4 | 5.7 |
| M3 | 1 | 3.85 | 4 | 6.8 | 8.9 | 3 | 0.15 | 11.05 | 10.89 | 0.5 | 8.7 |
| M4 | 1.75 | 7.32 | 7.5 | 13.7 | 17.4 | 5.25 | 0.15 | 21.1 | 20.88 | 0.6 | 17.2 |
| M5 | 2 | 9.82 | 10 | 17.7 | 22.5 | 6 | 0.2 | 26.75 | 26.17 | 0.8 | 22 |
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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