Faster Fixing Across Metal, Roofing & Construction

Every extra drilling step adds time when hundreds of fasteners are going into steel, roofing or cladding. Bremick Self Drilling Screws combine drilling & fastening in one operation across compatible metal, roofing, framing, fabrication & construction applications, provided the drill point, thread, gauge & length are matched to the material being fixed.

Often called Tek screws on Australian worksites, self drilling screws are a familiar choice for fastening sheet metal, roofing, sheds, garages, fencing & other steel assemblies without separately pre-drilling every fixing point. The familiar name doesn't make every screw interchangeable, though. Drill capacity, steel thickness, head style, coating & thread still determine where each fastener belongs.

Bremick's range extends from everyday self drilling metal screws through roofing fasteners, Deep Drillers, wafer head & countersunk screws, steel framing products, Bi-Metal options, Vortex families & specialised screws for polycarbonate or fibreglass roofing. The right choice starts with the substrate rather than the screw head.

Working across general fastening jobs as well? Screws & Anchors covers the wider screw & fixing range. For weather-exposed roof penetrations, Bremick Seals & Plates For Self Drilling Screws provides complementary seals & plates for compatible assemblies.

Before reaching for the impact driver, identify what the point has to drill through. Steel thickness, fixture thickness & supporting material determine far more than screw length alone.

What Are Bremick Self Drilling Screws?

A self drilling screw has a drill-style point designed to penetrate a compatible material before its thread engages & forms the fastening connection.

In suitable applications, that means the installer can drill & fasten without creating a separate pilot hole first.

Bremick's broader self drilling screw family includes products for applications such as:

► Metal-to-metal fastening
► Roofing to metal purlins
► Roofing to compatible timber supports
► Wall cladding
► Steel framing
► Sheet-metal fabrication
► Fencing, signs & fittings
► Timber-to-metal fixing
► Polycarbonate roofing
► Fibreglass roof sheeting
► Heavy-duty construction connections

Head style, point design, thread, coating & seal arrangement vary considerably across those jobs.

The term self driller describes how the fastener starts the hole. It doesn't mean every self drilling screw has the same drilling capacity.

Why Choose Bremick Self Drilling Screws?

Drill & Fasten in One Operation

Time savings become noticeable when a job contains hundreds of repetitive fixings.

A correctly selected self drilling screw removes the separate pilot-drilling stage in compatible materials, allowing the drill point to penetrate before the thread forms its connection.

That advantage disappears quickly if the point is wrong for the steel.

Choose From Different Drill Capabilities

Light sheet & heavier steel don't ask the same thing from a drill point.

Bremick separates products by application & drilling capability, including Deep Driller options for applications requiring greater steel penetration than lighter self drilling screws.

Match the Head to the Finished Connection

Some joints need easy external drive engagement.

Others need a low-profile or flush finish.

Depending on the family, Bremick offers head styles including:

► Hex head
► Wafer head
► Countersunk head
► Pan head
► Button head
► Specialised construction profiles

Choose the head around the joint rather than appearance alone.

Cover Roofing, Framing & Fabrication Work

A roof screw, framing screw & fabrication fastener may all be self drilling, yet each can have very different requirements.

Bremick's range separates these applications so buyers can select around material, drilling demand, exposure & finished connection.

Common Applications

Sheet Metal to Steel

Imagine fixing a fabricated cover onto a steel frame.

The screw first needs to penetrate the fixture & supporting steel, then establish sufficient thread engagement to clamp the components together.

That's where self drilling metal screws earn their place.

For other screws used specifically around sheet-metal work, browse Sheet Metal Screws.

Metal Roofing

Roofing adds another requirement to drilling performance: weather exposure.

A compatible self drilling roofing screw can combine metal penetration with a suitable head, sealing washer & corrosion-protection system for the specified roof assembly.

Correct washer seating matters just as much as getting the screw through the purlin.

Wall Cladding

Wall sheets can require repetitive fastening into steel supports without separate pilot drilling.

Head profile, screw colour, seal configuration, steel thickness & cladding system can all influence the appropriate fastener.

Don't assume the roof screw automatically becomes the wall screw.

Fencing & Gates

Metal fencing can involve sheet, rails, posts, brackets & fittings with very different combined thicknesses.

A screw for metal should be chosen around what it actually needs to penetrate, particularly when moving from light sheet into heavier structural components.

Signs & Metal Fittings

Mounting signs, brackets & light fittings to suitable steel can be another practical use for self drilling fasteners.

Check what's behind the fixture first.

A screw suited to thin metal sheet may not have the drill capacity required for a thicker support.

Steel Framing

Light-gauge steel studs, tracks & framing components often call for compact self drilling fasteners that can penetrate the combined material thickness without unnecessarily bulky heads.

Wafer head & other framing-oriented screws can be useful where reduced projection matters.

Sheds, Garages & Carports

A shed or garage can combine several fastening situations in one structure.

Roof sheets, wall cladding, flashings, framing components, doors & accessories can each need different screw configurations even when all of them involve steel.

Sorting fasteners by application before installation can prevent similar-looking screws from being mixed across the build.

Workshop Fabrication

Brackets, guards, light frames, sheet-metal panels & equipment housings frequently need fast connections without separate drilling & tapping operations.

A removable threaded fixing can also be useful where an assembly may need later servicing.

Roofing Into Steel Purlins

The visible roof sheet may be thin.

The steel underneath is what determines the drilling demand.

When selecting a screw for roofing to metal, consider the sheet, purlin thickness, drill-point capacity, required engagement, washer & environmental exposure as one assembly.

Fibreglass Roofing

Translucent fibreglass sheeting shouldn't simply inherit the screw used on adjacent steel roof sheets.

Bremick provides specialised products for fastening fibreglass roof sheeting to compatible metal battens or steel purlins.

For the dedicated range, browse Bremick Fibreglass Screws.

Maintenance & Repair Work

Removing a failed fastener can reveal more than expected.

Enlarged holes, corroded steel, stripped threads or damaged sheet can change what the repair requires.

Don't automatically replace an old screw with an identical size before inspecting the connection.

Product Selection Guide

Start With the Base Material

What's behind the fixture?

That's the first useful question.

A self drilling screw selected for thin sheet can behave very differently when it meets a heavier purlin or fabricated steel section.

Identify:

► Fixture material
► Fixture thickness
► Base material
► Base-metal thickness
► Combined drilling thickness
► Required thread engagement
► Environmental exposure

Only then does screw selection become meaningful.

Self Drilling Screws vs Self Tapping Screws

These terms are often mixed together, but the distinction matters.

A self drilling screw performs a tapping action after it drills.

A self tapping screw isn't automatically self drilling.

What Are Tek Screws?

On Australian building sites, Tek screws is a familiar term for self drilling screws used around metal fastening.

The important selection information still sits in the actual fastener specification.

A screw being called a Tek screw or self driller doesn't tell you its:

► Drilling capacity
► Gauge
► Thread pitch
► Length
► Head style
► Coating
► Washer arrangement
► Suitable substrate

Treat the familiar name as the start of the conversation rather than the specification.

Choosing Screws for Metal

Need screws for metal sheet, steel framing or a fabricated section?

Start with the total material the point must penetrate.

Thin sheet-to-sheet fastening can call for a very different self driller from a connection passing through a fixture into thick structural steel.

Matching the point to the metal saves more frustration than choosing by length alone.

Drill Point Comes Before Length

Two screws can be the same length & still perform very differently in steel.

The drill point needs sufficient capacity to penetrate the actual metal thickness before the main thread tries to establish engagement.

If the point can't complete its job, a longer screw won't solve the problem.

Why Steel Thickness Matters?

Here's where many frustrating installations begin.

A point designed for lighter steel can stall or overheat when pushed into material beyond its intended drilling range.

Possible signs of a mismatch include:

► Slow penetration
► Excessive heat
► Worn drill points
► Fasteners snapping
► Screws spinning without progressing
► Poor thread formation
► Inconsistent clamping

Check the current Bremick specification for the exact fastener rather than applying one drilling capacity across the entire range.

Deep Driller Self Drilling Screws

Need to penetrate heavier steel?

Bremick's Deep Driller families are designed for greater drilling demands than lighter sheet-metal screws.

Selected Bremick Hex Head Deep Drillers are specified for fastening steel up to 12.5 mm thick, with different gauges, thread configurations, lengths & seal options available.

The exact capacity belongs to the individual screw.

Don't assume every Deep Driller shares the maximum capability of the family.

Hex Head Self Drilling Screws

A hex head gives the driver positive external engagement.

That makes hex head self drilling screws useful across repetitive fastening jobs such as:

► Roofing
► Cladding
► Fencing
► Fabrication
► Steel assemblies
► Washer-equipped fixings

Use the correct nutsetter or socket for the head.

A loose-fitting driver can damage the fastener & make controlled final seating harder.

Wafer Head Self Drilling Screws

Need a broad head without the projection of a hex head?

Wafer head self drilling screws provide a lower-profile bearing surface that can suit framing, brackets, sheet-metal work & other compatible assemblies.

Bremick also lists a Wafer Head Deep Driller for applications requiring a flatter head with greater drilling capability.

Countersunk Self Drilling Screws

A protruding screw head can interfere with adjoining components or finished surfaces.

Countersunk self drilling screws are useful where the fixture is designed to accept a flush or near-flush head.

The receiving surface still needs suitable geometry.

Don't bury the head into material simply by increasing torque.

Pan Head Self Drilling Screws

Pan heads provide a conventional raised bearing surface & internal drive.

They can suit compatible metal fixtures, light sheet assemblies & general fabrication work where a hex head or countersunk finish isn't required.

Match the driver bit carefully to reduce cam-out.

Button Head Self Drilling Screws

A low-profile connection can be useful where bulky external heads aren't wanted.

Bremick includes button head self drilling products for suitable thin sheet-metal-to-metal applications.

Check head style, drive & drilling capacity against the assembly before substituting one low-profile screw for another.

Self Drilling Roofing Screws

Roofing screws do more than hold sheet to a support.

A compatible roof fastener may need to address:

► Drill-point capacity
► Screw gauge
► Thread engagement
► Roofing profile
► Seal or washer
► Corrosion protection
► Head style
► Installation control

For broader roof-fixing hardware, browse Roofing Nails & Fasteners.

Topgrip Roofing Screws

Bremick identifies Topgrip self drilling screws with seals for fastening the crest of roof sheeting to metal purlins where a watertight seal is required.

Available configurations vary by size.

Confirm the roof profile, purlin thickness & current product specification before selecting from length alone.

Z-Point Roofing Screws

Lapped purlins can create a different drilling situation from a single steel section.

Bremick's Z-Point commercial screw family is designed for fastening the crest of roof sheeting to lapped Z purlins with a seal where the specified application requires it.

This is a good example of why two roofing screws that look similar shouldn't automatically be treated as substitutes.

Roofing Washer Compression

Watch the washer as the screw reaches its final position.

A sealing washer needs controlled seating.

Too little compression can leave poor contact.

Too much can crush or distort the sealing component & surrounding sheet.

The goal isn't maximum torque.

It's the correct finished fixing.

Sealed vs Unsealed Self Drillers

Not every metal connection needs a sealing washer.

An internal fabrication joint has different requirements from a screw penetrating weather-exposed roofing.

Choose a seal where the fastening system calls for one rather than automatically adding or removing washers.

Steel Framing Screws

Framing work can involve thin steel layers that need quick repetitive fastening with limited head projection.

A framing-specific screw should be chosen around combined material thickness, head style, drill point & finished assembly.

Generic metal screws aren't automatically interchangeable with products intended for steel framing.

Bi-Metal Self Drilling Screws

Some exposed applications demand a different balance between drilling performance & corrosion resistance.

Bremick offers Bi-Metal self drilling screws across selected head styles.

Where a Bi-Metal fastener is specified, keep that material requirement intact rather than replacing it with an ordinary coated carbon-steel screw of similar dimensions.

Vortex Screws

Bremick's Vortex families cover specialised fastening across roofing, cladding & related construction work.

Different Vortex products are designed around different substrates, profiles & applications.

Check the exact family before assuming one Vortex screw can replace another.

Vortex Stitch Screws

Not every roofing fastener needs to reach the purlin.

Stitching applications join compatible sheet components or details where the fastening requirement differs from the main roof fixing.

Bremick's Vortex Stitch family addresses specialised roofing & cladding stitching applications.

Timber-to-Metal Wing Drillers

Fixing timber over steel creates a different drilling sequence.

Bremick's wing drilling families include products intended for timber-to-metal fastening.

The wings create clearance through the timber before the drill point reaches the steel, then the fastener engages the metal substrate.

Use the product designed for that material combination rather than forcing a conventional metal self driller through both layers.

Polycarbonate Roofing Screws

Polycarbonate moves with temperature & requires a fastening arrangement suited to the sheet system.

A standard metal roofing screw shouldn't be substituted simply because it reaches the supporting batten.

Hole clearance, sealing arrangement, fastener position & thermal movement all deserve consideration.

Gauge Doesn't Tell the Whole Story

Seeing “12g” on two boxes doesn't make the screws equivalent.

Gauge describes one part of the fastener.

Drill point, thread pitch, head, length, coating & application can still differ.

Read the full designation before ordering replacements.

How to Choose Screw Length?

Start with everything the fastener must pass through.

For metal assemblies, consider:

► Fixture thickness
► Base-metal thickness
► Seal or washer thickness
► Roofing profile where applicable
► Required thread engagement
► Clearance behind the fixing

A screw that's longer than necessary can create unwanted projection.

One that's too short may not develop the required engagement.

Drill Point Clearance Matters

The drill point needs enough room to penetrate the base metal before the main thread fully engages.

If thread engagement begins while the point is still struggling to drill, the screw can bind, heat up or fail to seat correctly.

This relationship between point length & material thickness is one reason exact product selection matters.

Keep the Screw Square

Starting on an angle can produce an oversized or poorly aligned hole.

A square approach helps the drill point cut predictably & allows the head or washer to seat more evenly.

Once the point begins wandering, extra pressure rarely improves the result.

Driver Speed & Pressure

A self drilling point needs to cut rather than simply grind against the steel.

Use the installation guidance for the particular fastener, keep firm controlled pressure during drilling & ease off as the screw approaches its final seating position.

Full trigger after the head reaches the fixture isn't an installation technique.

Don't Over-Tighten

One extra burst from the impact driver can undo an otherwise good installation.

Over-tightening can contribute to:

► Stripped threads
► Damaged screw heads
► Crushed sealing washers
► Distorted sheet
► Coating damage
► Poor final clamping

Stop when the fastener is correctly seated.

Driver Bits & Nutsetters Matter

A quality screw deserves the correct drive tool.

Hex heads need a properly fitting nutsetter or socket, while internal drives need the corresponding bit profile & size.

For compatible driving equipment, browse Impact Drivers.

Worn Driver Bits Cost Time

Rounded bits & worn nutsetters can slip, damage heads & make repetitive installation inconsistent.

Keeping suitable replacements on site is a small detail that can prevent a box of fasteners from becoming unnecessarily difficult to install.

For additional driver accessories, Power Tool Accessories covers related tooling.

Coating Selection Matters Outdoors

A bright finish isn't a reliable guide to corrosion performance.

Exterior roofing, cladding, agricultural structures, fencing & coastal environments can place different demands on fastener materials & coatings.

Select the current Bremick coating or material specification for the exposure involved.

B8 Coated Screws

Bremick uses its B8 corrosion-protection system across selected fastening families.

Where B8 is required, confirm it on the actual product rather than assuming every Bremick self drilling screw carries the same coating.

Fastener finish is part of the specification.

Stainless & Bi-Metal Options

Corrosive environments can lead buyers towards stainless or Bi-Metal fasteners.

Material choice still needs to account for the substrate, drilling requirement, surrounding metals & project specification.

Corrosion resistance shouldn't be considered separately from fastening performance.

Self Drilling Screws vs Machine Screws

These fasteners create very different connections.

A self drilling screw creates its own initial hole & mating thread in a suitable substrate.

A machine screw engages an existing internal thread or nut.

If the joint already has a tapped hole, drilling your own new thread may be exactly what you don't want.

Self Drilling Screws vs Rivets

Both can join sheet materials, but the finished connections differ.

A self drilling screw creates a threaded fixing that can often be removed with the correct driver.

A rivet is mechanically deformed during installation & normally requires a different removal method.

Future servicing can influence which connection makes sense.

Replacing Existing Self Drilling Screws

Pulled an old fastener from a machine guard, fence panel or roof sheet?

Record more than its overall length.

Check:

► Gauge
► Thread
► Drill point
► Head style
► Drive
► Washer or seal
► Coating
► Material
► Original substrate

A visually similar replacement can still behave differently.

Expert Tips

Screw spinning without clamping? Stop driving & inspect the hole. More trigger time won't restore stripped engagement.

Point turning blue from heat? Recheck steel thickness, drill capacity, speed & pressure before sacrificing another fastener.

Moving from thin sheet into a heavier purlin? Don't assume the same screw remains suitable just because its length reaches.

Roof washer badly flattened? Check the driver setting & seating technique before installing the rest of the box the same way.

Hex head starting to round? Inspect the nutsetter for wear or incorrect sizing.

Building a fence with several steel thicknesses? Separate the fasteners by connection rather than expecting one self driller to handle every rail, sheet & bracket.

Replacing a corroded exterior screw? Investigate whether the original coating or material suited the exposure before repeating the same specification.

Countersunk head sitting proud? Check the fixture geometry instead of forcing the screw deeper with extra torque.

Fabricating a removable panel? Think about future access before choosing between a threaded fastener & permanent-style fixing.

Unsure whether you need a self driller or self tapper? Look at the starting hole. If the screw needs to create the initial hole in suitable metal, you're dealing with a different requirement from a prepared-hole connection.

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