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Understanding Rivets Sizes
Open end blind rivets are the most common type sold across hardware stores and online. Available in 3 common head types – truss, countersunk and large flange.
A larger flange rivet is used when a wider surface head type is required usually with soft or brittle top sheets.
Other types of blind rivets include a sealed rivet that features a totally enclosed rivet end, the mandrel is sealed inside. Multigrip rivets offer an extended grip range with a standard rivet body diameter.
How to read blind rivets codes?
Example: 2AS4-10
"2" – Allfasteners Group Code
"A" – Rivet Material Code
"S" – Mandrel Material (stem) Code
"4" – Rivet Diameter Code (see table)
"10" – Grip Range Code (see table)
2AS4-10 is an aluminium rivet with a steel mandrel, and a 3.2mm (1/8") body diameter with a grip range of 12.7 – 15.9mm
Rivet Diameter Table:
| Rivet Body Diameter, d ø |
|||
| Code | Diameter | Rec. Drill Dia | |
| Imperial | Metric | ||
| 3 | 3/32" | 2.4mm | 2.5mm |
| 4 | 1/8" | 3.2mm | 3.3mm (#30) |
| 5 | 5/32" | 4.0mm | 4.1mm (#20) |
| 6 | 3/16" | 4.8mm | 4.9mm (#11) |
| 8 | 1/4" | 6.4mm | 6.5mm |
Grip Range Table:
| Grip Range | |||
| Code | Min- Max | Mutigrip | |
| Imperial | Metric | Metric | |
| 1 | up-to 1/6" | 0.5 – 1.6mm | - |
| 2 | 1/6" to 1/8" | 1.6 – 3.2mm | - |
| 3 | 1/8" to 3/16" | 3.2 – 4.8mm | 0.8 – 4.8mm |
| 4 | 3/16 to - 1/4" | 4.8 – 6.4mm | 1.2 – 6.4mm |
| 5 | 1/4" to 5/16" | 6.4 – 7.9mm | - |
| 6 | 5/16" to 3/8" | 7.9 – 9.5mm | - |
| 8 | 3/8" to 1/2" | 9.5 – 12.7mm | - |
| 10 | 1/2 to 5/8" | 12.7 – 15.9mm | - |
