Tek Screws | Self Drilling Metal Screws

Tek screws metal drilling in various types and finishes

Tek Screws – Australia's Strongest Self-Drilling Screws for Metal and Timber

Tek screws—also known as self-drilling screws—are precision-engineered fasteners designed to drill, tap, and fix in one seamless operation. At Scrooz Fasteners, Australia’s trusted supplier of high-performance fastening solutions, we offer the largest and most advanced range of tek screws for metal-to-metal and timber-to-steel applications.

Our tek screws feature integrated drill-point tips, eliminating the need for pilot holes and significantly reducing installation time. They’re the preferred choice for tradespeople, builders, manufacturers, and DIYers seeking fast, reliable, and long-lasting fixings.

Why Scrooz Tek Screws Lead the Industry

Unmatched Range: From standard hex head tek screws for fixing to steel up to 4.8mm thick, to our exclusive Series 600 tek screws—the only screw in Australia capable of drilling into steel up to 15mm—we’ve got every fixing job covered.
Heavy-Duty Engineering: All screws are independently tested and manufactured to exceed Australian standards for tensile strength, shear resistance, and corrosion durability.
Industrial-Grade Finishes: Choose from Class 4 Galvanised, C5 Rated Galvanised, Gold Zinc or our exclusive Ceramic Screw Armour™ for superior performance in corrosive environments.
Common Applications:: Metal roofing and cladding, steel framing and structural fabrication, timber to steel jointing, mechanical and industrial assemblies along with general construction and workshop use

Trusted by Professionals Nationwide

Backed by industry-leading quality, Scrooz tek screws are supplied in trade packs and bulk cartons to suit both large-scale commercial projects and home improvement tasks. All products ship fast from our Australian warehouse, with expert support available if you need help choosing the right screw for your application.

Our Range:

Button, wafer head and flat top tek screws are listed in their own category here

Hex Head Tek Screws

Tek Screws Self Drilling Hex Head Galvanised

Professional grade hex head screws from our metal tek self drilling screws range. Features include large diameter hex washer head offering a greater surface area to give a strong clamping action when tightened plus a hardened shank and drilling point.

Designed for high strength fastening of brackets, components, steel sections, assemblies and sheet metal to steel 2.5mm to 4.8mm thick, available in gold zinc plate or high performance class 4 galvanised finish for premium corrosion protection in internal and external applications. 1/4", 5/16" and 3/8" hex drives.

Manufactured to Australian Standard AS3566
Self drilling hardened points for fast insertion and self centered start.
Parallel thread providing a constant and even clamping load.
Heavy duty high strength shanks designed for use with high torque cordless screw drivers.
Thread cutting profile with a coarse tapping thread for rapid installation.
Gold Zinc Plate or Class 4 galvanised finish for premium corrosion protection.

Series 500 Hex Head Tek Screws

Series 500 Tek Screws

Heavy duty series 500 screws from our tek screw metal self drilling screw range. Features include hex large diameter washer head offering a large surface area for a strong clamping action and a hardened shank with extra long drill points for fastening directly into thick steel.

Our Series 500's are fine thread screws designed for maximum clamping force into thick steel sections. These self drilling screws will self drill directly into steel thickness's up to 8mm and negate the need for pre drilling in sections where traditionally a pilot hole would have had to be drilled. The series 500 self drilling screws will screw into all steels, including hot rolled steel, I beams, thick steel purlins or any thick steels up to their maximum capacity. For improved drilling capacity up to 12mm check out our series 600 screw range.

Series 500 Screws are designed for high strength fastening of brackets, components, steel sections, assemblies and sheeting to heavy gauge steel up to 9mm thick, 24TPI fine thread with a 20mm drill point length. 5/16" hex head and high performance class 4 galvanised for premium corrosion protection.

Manufactured to Australian Standard AS3566
Self drilling hardened points for fast insertion and self centered start.
Parallel thread providing a constant and even clamping load.
Heavy duty high strength shanks designed for use with high torque cordless screw drivers.
Thread cutting profile with a fine tapping thread for rapid installation in thicker steel.
Class 4 galvanised finish for premium corrosion protection.

Series 600 Hex Head Tek Screws

Series 600 Tek Screws Self Drilling Hex Head

Our Super High Performance series 600 hex head tek screws drill faster, easier and deeper than any other metal self drilling screws on the market. Their amazing performance comes from the 8 hardened cutting faces which are individually machined into each screw (as opposed to continual feed and forged manufacturing) which makes these screws operate more like individual drill bits.

Designed for maximum performance in the toughest of steels and they drill deeper than any competitor product, at an incredible 15mm drill capacity. These are a premium engineered ceramic coated metal self drilling tek screw for customers requiring consistent high performance.

8 blade hardened and machined drill bit cutting faces.
Can be used in steels from 1mm up to 15mm thick.
Parallel thread providing a constant and even clamping load.
Heavy duty high strength shanks designed for use with high torque cordless screw drivers.
Thread cutting profile with a fine tapping thread for rapid installation in thick steel.
Flanged washer head for increased clamping force.
5/16" hex drive and 24 TPI.
Finished in our highest quality Screw Armour Ceramic coating for premium corrosion protection.

Countersunk Tek Screws

High performance countersunk head screws from our metal tek self drilling screw range. Features include low profile flush fitting head for an unobtrusive finish and a hardened shank and body for high strength fastening of pre-drilled and countersunk components in steel up to 4mm thick, 24TPI.

Phillips no 2 drive and class 3 galvanised for maximum corrosion protection and external use, free driver supplied in all packs and trade boxes.

Manufactured to Australian Standard AS3566
Countersunk head type for a flush finish.
Self drilling hardened points for fast insertion and self centered start.
Parallel thread providing a constant and even clamping load.
Heavy duty high strength shanks designed for use with high torque cordless screw drivers.
Thread cutting profile with a fine tapping thread for rapid installation.
Gold Zinc Plate or Class 3 galvanised finish for premium corrosion protection.

Wing Tip Tek Screws

Scrooz Wing Tip screws are professional grade high performance self drilling fasteners for fixing timber to metal in a single operation without the need for pre-drilling. Manufactured with a ribbed countersunk self embedding head giving a flush finish in the timber.

Ideal for fixing timber boards, battens and general timber to steel sections. Due to the different rates of expansions of the timber and steel there is a possibility of screw shearing. This is solely down to timber movement.

Although this is a very rare occurrence (less than 0.5% of cases), due to the volume of wing tip screws we sell for decking boards, all customers must be aware we accept no liability for any screws shearing due to differential timber movement as this is not something under our control.

Methods to reduce timber movement would be sealing, proper ventilation, correct spacing and suitable drainage eliminating standing water. Contact us for more advice regarding your specific application if you are unsure.

For fixing 19mm or 22mm decking boards you'll need a 10g x 45mm length screw.

Self drilling hardened points for fast insertion and self centred start.
No2 square drive for a positive connection avoiding 'tear out'.
Hex 5 drive for 14g wing tip metal self drilling screws.
Countersunk head type for a flush finish.
Parallel thread providing a constant and even clamping load.
Heavy duty high strength shanks designed for use with high torque cordless screw drivers.
Thread cutting profile with a coarse tapping thread for rapid installation.