Wide Grip Blind Rivets for Variable Material Thickness

Different sheet thicknesses don't always need a different rivet length. Bremick Multi-Grip Rivets provide a wider working grip range than conventional narrow-range blind rivets, making them practical for sheet metal, fabrication, repairs & assembly work where the combined material thickness changes between fixing points.

These multi-grip blind rivets install from one side of the workpiece, so they're useful for panels, enclosures, sheet-metal assemblies & fabricated components where reaching behind the joint isn't practical. Bremick's published range includes aluminium multi-grip rivets with steel stems across multiple diameters & grip ranges.

Need to compare other riveting options? Browse Rivets & Fixings. Preparing holes before setting the rivet? Drill Accessories can help match the drilling setup to the work.

Before opening the rivet tool, check material stack thickness, rivet diameter, grip range, hole size, body material, mandrel material & head configuration.

What Are Bremick Multi-Grip Rivets?

Multi-grip rivets are blind rivets designed to accommodate a wider range of material thicknesses than many conventional narrow-grip rivets.

“Blind” means installation can take place from one accessible side of the joint.

The rivet body passes through a correctly prepared hole. As the rivet tool pulls the mandrel, the body forms on the blind side of the workpiece & clamps the materials together. Once the rivet is correctly set, the mandrel breaks at its designed point.

Bremick's published aluminium multi-grip family includes 5052 aluminium rivet bodies with zinc-plated steel stems in truss-head configurations.

On worksites & in workshops, you'll also hear terms such as blind rivets, multigrip rivets, wide-grip rivets & pop rivets. Whatever name is used at the counter, selection should come back to the actual rivet diameter, grip range, materials & joint requirements.

Why Choose Bremick Multi-Grip Rivets?

Wider Grip Range Across Changing Material Stacks

This is where multi-grip rivets earn their place.

Imagine three fixing points across the same fabricated assembly.

One passes through two sheets.

Another includes an overlap.

The third passes through a sheet & bracket.

The total thickness changes at each point.

If all three material stacks fall within the specified grip range of one suitable multi-grip rivet, that rivet may cover all three joints without changing to several conventional rivet lengths.

Practical for Sheet Metal Work

Multi-grip rivets for sheet metal are useful where folds, overlaps, brackets & reinforcement change the thickness being fastened.

That can make them a practical option across compatible sheet-metal fabrication, equipment panels, ducting, enclosures, repairs & general workshop assembly.

One-Sided Installation

Can't reach the back of the panel?

A blind rivet doesn't require the same rear access as a conventional bolt & nut assembly.

That's valuable around enclosed sections, housings, panels & fabricated assemblies where access exists from only one side.

Fewer Rivet Lengths to Manage

A wider grip range can reduce the number of individual rivet lengths required across suitable jobs.

That's useful for workshop stock control, service vehicles & maintenance crews.

It doesn't mean one multi-grip rivet replaces everything.

Diameter, grip range, material, head configuration & hole size still need to match the joint.

Common Applications

Sheet Metal Fabrication

Fabricated sheet assemblies rarely stay one thickness everywhere.

Folds, seams, brackets, reinforcement plates & overlapping sheets all change the total stack.

Multi-grip blind rivets can simplify fastening where those different thicknesses remain inside the selected rivet's grip range.

Equipment Panels & Enclosures

Panels, housings, covers & enclosures often need fastening without convenient access behind the joint.

Blind riveting allows installation from the accessible face.

Replacing an existing rivet? Measure the material stack & inspect the hole rather than selecting from the visible head alone.

Automotive & Trailer Repairs

Suitable panels, guards, brackets, covers & fabricated components can involve different material thicknesses across one repair.

Check the existing hole carefully.

An elongated or damaged hole isn't automatically fixed by installing a larger-diameter rivet.

HVAC & Ductwork

Sheet-metal ducting, covers, flashings & fabricated HVAC components can suit blind riveting where the joint requirements permit it.

Seams & overlaps make grip-range selection particularly relevant because the material stack can change across the installation.

Roofing, Fascia & Guttering Work

Blind rivets are commonly encountered in compatible sheet-metal work.

For exposed installations, consider more than grip range.

Rivet body material, mandrel material, joined metals & environmental exposure can all influence product selection.

Workshop & Maintenance Repairs

Multi-grip rivets are useful when the original rivet length isn't obvious.

Rather than guessing from the broken fastener, measure the combined material thickness where practical & choose a rivet whose specified grip range covers the joint.

Product Selection Guide

Start With Grip Range, Not Overall Rivet Length

The most useful number on a multi-grip rivet is often its grip range.

Grip range describes the combined material thickness the rivet is intended to clamp.

Bremick's published aluminium multi-grip family includes examples such as:

Exact selection depends on the individual product & joint.

A 4.8 mm rivet isn't automatically correct because the existing hole accepts 4.8 mm. The material stack still needs to fall inside that rivet's specified grip range.

How Do You Measure Rivet Grip Thickness?

Measure the combined thickness of everything the rivet will clamp.

Two sheets at 1.5 mm each create a nominal 3 mm material stack.

Add a 2 mm bracket behind them & the stack becomes 5 mm.

That's the thickness the grip range needs to accommodate.

3.2 mm Multi-Grip Rivets

A 3.2 mm multi-grip rivet, often associated with 1/8-inch rivet sizing, provides a smaller-diameter option for compatible sheet assemblies.

Bremick's published range includes more than one grip window at this diameter.

Check the material stack before deciding which 3.2 mm rivet is required.

4.0 mm Multi-Grip Rivets

4.0 mm multi-grip rivets provide another useful size for sheet-metal fabrication & general assembly.

Again, diameter isn't the complete specification.

A 4.0 mm rivet can be available across different grip ranges, so match both numbers to the joint.

4.8 mm Multi-Grip Rivets

A 4.8 mm multi-grip rivet, commonly associated with 3/16-inch rivet sizing, provides a larger-diameter option for compatible assemblies.

Bremick's published multi-grip family includes several grip ranges at 4.8 mm.

This is a good example of why ordering “a box of 4.8 rivets” isn't specific enough.

Multi-Grip Rivet vs Standard Blind Rivet

Both install from one side.

Their grip capability is where the practical difference appears.

Multi-grip isn't automatically better.

If you're repeatedly joining one known material thickness, a conventional blind rivet may be entirely appropriate.

Multi-Grip Rivets vs Pop Rivets

“Pop rivet” is commonly used in everyday trade language when talking about blind rivets.

A multi-grip rivet belongs to the blind-rivet family, but multi-grip identifies the feature that matters here: a wider usable grip range.

If you're ordering replacement hardware, giving the supplier the diameter & required grip range is more useful than asking only for a pop rivet.

Head Style Matters Too

Grip range gets most of the attention, but the rivet head still affects how the fastener bears against the accessible side of the workpiece.

Across the broader Australian multi-grip rivet market you'll encounter descriptions such as dome head, truss head, countersunk & large flange.

These descriptions aren't interchangeable.

Bremick's published aluminium multi-grip family identifies truss-head products, so select from the actual Bremick range rather than assuming every head style available elsewhere is offered in this collection.

Truss Head Multi-Grip Rivets

A truss-style rivet head provides a broad bearing face on the accessible side of the joint.

When replacing an existing rivet, don't identify the product from head shape alone.

Confirm diameter, grip range, body material & mandrel material as well.

What About Dome Head Multi-Grip Rivets?

Dome head multi-grip rivets are common in the broader blind-rivet market.

If the job specifically calls for a dome-head product, check the individual rivet specification rather than treating truss head & dome head as automatically interchangeable descriptions.

What About Countersunk Multi-Grip Rivets?

A countersunk rivet is intended to sit into a suitably prepared countersunk recess where a flush or reduced-profile surface is required.

Don't substitute a countersunk rivet merely because a projecting head is inconvenient.

The workpiece needs the correct preparation & sufficient material conditions for the specified countersunk joint.

What About Large Flange Multi-Grip Rivets?

A large-flange rivet uses a wider head to increase the bearing area on the accessible side.

This can be useful with suitable softer or thinner materials, but large flange describes the head configuration while multi-grip describes grip capability.

One doesn't automatically imply the other.

Multi-Grip Rivet vs Sealed Rivet

A sealed or closed-end rivet has a different body configuration used where its closed blind end or sealing characteristics are required.

A multi-grip rivet is primarily chosen for its wider material-thickness range.

Don't substitute between the two because diameter & visible head size happen to match.

Aluminium Body With Steel Mandrel

Bremick's published aluminium multi-grip family uses a 5052 aluminium body with a zinc-plated steel stem.

That construction suits compatible general riveting applications, but material selection shouldn't stop there.

Consider the rivet body, mandrel, joined materials & service environment together.

Aluminium 5052 vs Aluminium 5056 Rivets

Bremick's broader rivet catalogue includes both Aluminium 5052 & Aluminium 5056 product families.

Those material descriptions shouldn't be treated as interchangeable merely because both are aluminium.

Match the actual rivet family to the required joint.

Rivet Diameter & Hole Size

The prepared hole needs to suit the selected rivet.

Too small & the rivet won't insert correctly.

Excessive clearance can affect the intended fit.

Follow the hole requirement for the actual rivet rather than enlarging the hole until something fits.

Preparing the Hole

A good riveted joint starts before the rivet enters the work.

After drilling:

► Remove burrs
► Clear swarf
► Check hole alignment
► Bring the materials firmly together
► Confirm the rivet inserts correctly
► Inspect for excessive clearance

For sheet-metal assemblies using other mechanical fixing methods, Self-Drilling Screws provide another fastening option where the application suits threaded fixing rather than blind riveting.

Re-Riveting an Existing Hole

Drilled out an old rivet?

Inspect what's left.

Look for:

► Hole elongation
► Cracking around the hole
► Distortion
► Burrs
► Corrosion
► Excessive clearance
► Misaligned sheets

Don't use a fresh rivet to disguise damaged material.

Selecting the Rivet Tool

The rivet tool needs to suit the rivet diameter & mandrel.

Manual riveters can work well for lower-volume repairs & assembly.

Higher-volume fabrication may justify powered equipment.

Whatever tool is used, fit the correct nosepiece & keep the tool aligned with the rivet during setting.

What Happens if the Grip Range Is Too Short?

If the total material thickness exceeds the rivet's maximum grip, the rivet may not form & clamp the joint as intended.

Don't force a short-grip rivet into a thicker assembly.

Move to the correct grip range.

Is the Longest Rivet the Safest Choice?

No.

More length isn't automatically more secure.

A multi-grip rivet should be used within its specified grip window.

Choose according to the material stack rather than treating excess rivet length as extra capacity.

Mixed Material Thickness

This is the practical multi-grip advantage.

Suppose fixing points across an assembly have material stacks of:

► 4 mm
► 5 mm
► 6 mm

If those thicknesses all fall inside the specified grip range of one suitable rivet, & its diameter, materials, head configuration & hole requirements also match, one rivet may cover all three joints.

That can simplify both installation & workshop stock.

Material Compatibility

Joining different metals?

Consider how the rivet & workpieces will behave together in their service environment.

Moisture & external exposure can make dissimilar-metal compatibility particularly important.

For alternative fastening methods where a blind rivet isn't suitable, compare Specialty Fasteners.

Permanent Fastening vs Future Access

A blind rivet isn't intended to work like a removable machine screw.

Removal normally requires the rivet to be drilled or otherwise removed destructively.

If a panel needs frequent servicing, ask whether a removable fastening system would make more sense before riveting it permanently.

Expert Tips

Measure the complete material stack. Grip range applies to everything captured by the rivet.

Choose diameter & grip range separately. The right diameter can still have the wrong grip range.

Don't order by length alone. Grip range tells you whether the rivet can accommodate the material thickness.

Check the head configuration. Truss, dome, countersunk & large-flange descriptions shouldn't be treated as interchangeable.

Clamp the workpieces together before setting the rivet. An unintended gap can become part of the finished joint.

Deburr freshly drilled holes. Clean preparation helps the materials sit together properly.

Inspect old holes before re-riveting. An elongated hole deserves investigation, not simply another rivet.

Keep rivet materials labelled. Similar-looking rivets can have different body & mandrel materials.

Use the correct riveter nosepiece. Tool setup should match the mandrel being pulled.

Think about future maintenance. Don't permanently rivet a panel that needs routine removal unless that fastening approach is intentional.

For a broader look at choosing between rivets, screws, bolts & other fastening methods, read Fastener Guide Bolts Screws Anchors.

A reliable fastening result depends on more than the tool pulling the mandrel. Why Good Fasteners Matter More Than the Tool You Drive Them With looks at why the hardware itself deserves proper selection.

Building out a practical workshop setup? The Apprentice's First Tool Kit: What You Actually Need covers useful considerations when putting together trade equipment.