Countersunk Blind Rivets
| Standard | DIN 7337 · ISO 15978 |
|---|---|
| Material | Aluminum Alloy Body / Zinc-Plated Carbon Steel Mandrel |
| Strength Grade | AlA/St Countersunk |
| Size Range | 3.2-6.4 mm |
| Surface Treatment | Natural Aluminum Body / Zinc-Plated Mandrel |
01
Product Description
Product Description & Key Specifications
Countersunk blind rivets use a conical head that seats into a prepared countersink to minimize fastener projection above the panel. They suit covers, sliding interfaces, facings and interior panels where a protruding dome head is undesirable.
Flushness and joint strength depend on countersink angle and diameter, panel thickness, hole diameter and grip selection. Very thin sheet may provide reduced bearing area after countersinking, so the joint drawing should be reviewed before supply.
| Product type | Countersunk blind rivets / flush blind rivets |
|---|---|
| Standards | ISO 15978 / DIN 7337 |
| Material | Aluminum alloy body / zinc-plated steel mandrel (AlA/St) |
| Diameter range | 3.2-6.4 mm |
| Head style | Countersunk; angle and dimensions by standard or drawing |
| Hole preparation | Drilled hole and countersink matched to head dimensions |
| Typical use | Low-profile surfaces, covers, facings and interior panels |
02
Selection
Selection Advantages by Application
Railway and Vehicle Panels
Used where head projection must be minimized on covers, facings and traffic-adjacent surfaces.
Railway fastenersAerospace Interior Panels
Drawing, material, project approval and design loads must be confirmed before aerospace use.
Aerospace fasteners03
Assembly
Recommended Matching Products
04
Manufacturing
Manufacturing & Quality Control
Manufacturing CapabilityQuality Control
Conical-head and aluminum-body formingHead angle, diameter and height inspection
Mandrel assembly and grip-range controlHole, countersink and installed flushness sample check
Size and lot-controlled packagingShear, tensile and mandrel-break testing support
05
FAQ
Common Questions Before RFQ
Will the rivet head be completely flush?
It depends on the match between head and countersink, panel thickness and installation quality.
Can countersunk rivets be used in very thin sheet?
The sheet must be reviewed because countersinking can reduce the available bearing area.
What RFQ data is required?
Send diameter, length, grip range, countersink angle and diameter, panel thickness, material and quantity.
Need countersunk blind rivets for a low-profile panel surface?
Send hole and countersink dimensions, panel thickness, grip range, material and quantity for quotation.
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