Standard Blind Rivets
Blind Rivet Terms
GOEBEL BLIND RIVETS
To join two pieces of material, the body of the rivet is inserted into a pre-drilled hole, then a nail rivet tool is used to pull the top of the mandrel to expand the body, clamping the two materials together. The force of the rivet tool then pops off the mandrel, leaving behind the domed head blind rivet.
Standard blind rivets can be placed on components that are accessible on one side or on two sides.
Applications: Containers/tanks, hollow body, tubes, profiles, air ducts and many others.
Characteristics: Economical • versatile • strong • secure
Rivet Body
Aluminium – Lightweight with good corrosion resistance.
Steel – Stronger than Aluminium with a “flash” coating of Zinc. Low corrosion resistance.
Stainless Steel A2 – Good Strength and excellent corrosion resistance.
Stainless Steel A4 – Good Strength and increased corrosion resistance
Copper – Relatively soft. Excellent corrosion resistance and conductivity.
Monel – The strongest blind rivet material with excellent corrosion resistance and conductivity. Also excellent high temperature suitability.
Material USAGE GUIDE.
Galvanic Corrosion • When dissimilar metals come into contact in the presence of an electrolyte, a galvanic action occurs which corrodes one metal at a faster rate and the other more slowly. This phenomenon can cause major riveted joint failures and care must be taken to avoid the occurrence. The following table is a guide.
| METAL JOINED | |||||
| RIVET MATERIAL↓ | Aluminium | Coated Steel | Stainless Steel | Copper | Brass |
| Aluminium | YES | CARE | NO | NO | NO |
| Coated Steel | NO | YES | NO | NO | NO |
| Stainless Steel | CARE | CARE | YES | YES | YES |
| Copper | NO | NO | YES | YES | YES |
| Monel | NO | NO | YES | YES | YES |
| YES | Compatible | ||||
| NO | Incompatible – Avoid contact with each other | ||||
| CARE | Use with care. Painting metals will help | ||||
Hence,
1) Select materials that are as close together as possible in the Galvanic
Series Chart
2) Provide a barrier between the two metals, such as paint, non-metallic
washer or gaskets
3) Design the fastener as the cathode so the cathodic area is small as
compared to the anodic area
4) Use a metallic finish on the fastener that is close on the chart to the
mating material
Types of Blind Rivets.
Open End “STANDARD”
General purpose rivet available in a wide range of materials and head styles. Suitable for applications with normal load bearing requirements. By far the most commonly used style of blind rivet due to the ease of use and low initial cost.
Head Styles.
- Dome Head
- The Dome Headed or sometimes called Round head blind rivet is the most versatile and commonly used type whose lower profile head is approx. twice the diameter of the rivet body. This provides adequate bearing surface for nearly all applications where metals are being joined.
- Aluminium-Steel – Download-Datasheet-AL-ST
- Steel-Steel – Download-Datasheet-ST-ST
- Stainless Steel – Stainless Steel – Download Datasheet A2-A2
- Copper-Steel – Download Datasheet CU-ST
- MONEL-Stainless Steel – Download Datasheet MO-SS
- CSK Head
- The Countersunk or CSK head profile provides a neat and flush finish to the joint. This enables multiple layered assembly and also a safe surface without any projection.
- Aluminium-Steel –Download-Datasheet-Al.ST
- Steel-Steel –Download-Datasheet-ST-ST
- Stainless Steel – Stainless Steel – Download-Datasheet-A2-A2
- LARGE FLANGE
CLOSED End “CUP”
Also known as Sealed Blind Rivet.
Designed with a completely closed body, this rivet is ideal for applications that need to be
water/pressure tight or where mandrel retention is paramount.
Used for providing a leak-proof joint.
- Dome Head
- CSK Head
- LARGE FLANGE
MULTI-GRIP Blind Rivets
- Dome Head
- CSK Head
- LARGE FLANGE