Product Overview

Closed end blind rivets are structural blind fasteners designed for applications where joint integrity and sealing performance are required at the same time.

Key Features

Fully enclosed tail-end and internal cavity structure retain the mandrel after break-off, forming a sealed joint without through-hole passage.

Blind-side installation design enables fastening from a single accessible surface without backside access.

Controlled rivet body expansion ensures uniform material engagement and consistent clamping force distribution.

Cylindrical rivet configuration ensures stable mandrel expansion and structural locking after installation.

Standard Size and Mechanical Data Reference

Diameter	Grip Range (mm)	Head Type	Length (mm)	Head Diameter (mm)	Shear Strength (N)	Tensile Strength (N)	Material Options
3.2 mm	0.5–4.5	Dome / Countersunk	8–12	6.5–6.8	1000–1300	1400–1800	Aluminum / Steel
4.0 mm	1.0–6.0	Dome / Countersunk	10–14	8.2–8.5	1800–2000	2300–2800	Aluminum / Steel / Stainless Steel
4.8 mm	1.5–9.5	Dome / Countersunk / Large Flange	12–18	9.5–10.0	2800–3500	3800–4500	Steel / Stainless Steel
6.4 mm	3.0–12.0	Dome / Large Flange	16–22	13.0–13.5	4200–5000	5500–6500	Steel / Stainless Steel

Application Scope

Automotive body and chassis assembly

Truck and commercial vehicle structures

Marine and shipbuilding structures exposed to moisture and salt conditions

HVAC ducting and air-handling systems requiring pressure containment

Electrical enclosures and industrial control cabinets

Roofing and metal sheet construction systems

Industrial equipment housings and sealed mechanical assemblies

Closed-End vs Open-End Blind Rivets – Performance Comparison

Performance Aspect	Closed End Blind Rivet	Open End Blind Rivet
Sealing capability	Closed internal structure prevents leakage	Open mandrel path may allow leakage
Environmental resistance	Suitable for wet or exposed conditions	Limited sealing performance
Structural consistency	Stable internal locking after installation	Standard structural fastening
Application scope	Sealed assemblies and enclosures	General fastening applications

Manufacturing and Quality Control

Incoming material inspection for mechanical consistency

Dimensional control during forming and assembly processes

Verification of mandrel break behavior and expansion consistency

Final inspection of structural integrity and surface condition

Frequently Asked Questions

Q: Are Closed End Blind Rivets reusable once installed?

A: No. Once the mandrel breaks, the rivet forms a permanent fastening unit and cannot be reused.

Q: Can Closed End Blind Rivets accommodate varying material thicknesses?

A: Yes. Rivets come in multiple grip ranges to fit different material thicknesses, ensuring proper joint engagement.

Q: What tools are required for installation?

A: Standard blind rivet installation tools or pneumatic rivet guns suitable for the rivet diameter; no special equipment is needed.

Q: How does the closed-end design affect corrosion resistance?

A: By preventing liquid or debris ingress, the closed-end structure reduces moisture exposure, supporting corrosion resistance when combined with materials like stainless steel or aluminum.

Q: Are these rivets compatible with standard open-end rivet installation tools?

A: Yes. Most standard blind rivet tools can install closed-end rivets of matching diameter, but tool specifications should be checked for grip range compatibility.

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