GB /T 12617.5 (GB) and ISO 16583 (ISO) are equivalent fastener standards that specify the same or very similar products. Both standards cover 2 fastener types in our database.
GB /T 12617.5 (GB standard) and ISO 16583 (ISO standard) are equivalent standards that define the same fastener geometry and mechanical requirements. Minor differences may exist in tolerances, marking requirements, or referenced test methods, but the products are interchangeable in most applications. Always verify specific project requirements with your engineer.
| Property | GB /T 12617.5 | ISO 16583 |
|---|---|---|
| Standard Body | GB | ISO |
| Product Types | 2 fastener types | |
| Interchangeable? | Yes — equivalent standard | |
From: Open End Blind Rivets with Break Pull Mandrel and Countersunk Head - Cu/St or Cu/Br or Cu/SSt — applies to both GB /T 12617.5 and ISO 16583
| Size | P | k_max | k_min | s_max | s_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|
| Φ3 | 3.28 | 1.3 | 2 | 3.05 | 6.7 | 5.8 | 25 |
| Φ3.2 | 4.88 | 2 | 2.95 | 4.65 | 10.1 | 8.3 | 27 |
Both GB /T 12617.5 and ISO 16583 fasteners are available with various surface treatments. Common options for these standards include:
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