Cart
Understanding Pop Rivet 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?
"1080" – Allfasteners Group Code for A-S Dome Head Rivet
"4" – Rivet Diameter Code (see table below)
"10" – Grip Range Code (see table below)
"A" – Rivet Material Code
"S" – Mandrel Material (stem) Code
A-S 4-10 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
Common Rivet Diameter Table:
The rivet body diameter is the most important measure when selecting the rivet as it directly relates to the mandrel strength and the drilled hole size. If a hole is oversized your rivet might pull completely through damaging your material.
| 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 |
How to Choose the Correct Rivet Grip Range
What is grip range? Blind fasteners such as rivets must protrude through the other side of 2 mating materials. This is crucial to the success of the installation, therefor a grip range is more important then the length of the rivet. Don't be confused by the quoted length of a rivet with it's maximum grip thickness.The rivets body length will always be slightly longer than the maximum grip value given. Refer to the table below.
Rivet Grip Range Table:
| Grip Range | |||
| Code | Imperial min - max | Metric min - max | Mutigrip Rivet min - max |
| 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 | - |
| 12 | 5/8" to 3/4" | 15.9 – 19.1mm | - |
| 14 | 3/4" to 7/8" | 19.1 – 22.2mm | - |
| 16 | 7/8 to 1" | 22.2 – 25.4mm | - |
| 20 | 1 to 1-1/4" | 25.4 – 31.8mm | - |
When selecting the correct rivet for your project, it’s important to consider both the material and the diameter to ensure a secure and lasting fastening. At Allfasteners, we stock a wide range of pop rivets and blind rivets suitable for aluminium, stainless steel, steel, and even specialized structural applications.
Explore our categories to find the perfect rivet for your needs:
- Aluminium Pop Rivets – lightweight and corrosion-resistant for general sheet metal work.
- Stainless Steel Pop Rivets – ideal for marine or outdoor environments requiring superior durability.
- Large Flange Rivets – designed to distribute load across softer or thinner materials.
- Structural Blind Rivets – for heavy-duty applications where high shear and tensile strength are required.
By matching the correct size and type of rivet to your project, you can ensure reliable and long-lasting fastenings every time.