


What Are Tek Screws
Tek screws are specialist metal self drilling screws that are manufactured with a drill point that allows the screw to self drill and tap into it's own hole in metal in one single operation without the need to pre-drill a pilot hole. Working like a drill bit they are a fast, simple and popular fastener solution for general fixing to or joining metal components and structural or sheet metal.
They are also ideal for 'blind fixing' i.e. situations where the back of the fastener cannot be accessed such as box sections, steel beams, structures and components ruling out a nut and bolt option. They are known by several names in construction and engineering apart from teks or tek screws and are commonly called tec or tech screws and/or self drilling screws or just metal screws and metal drillers.
Types of Tek Screws in our Range?
We currently stock 15 different types of high performance tek self drilling screws in our range, listed below is our heavy duty range comprising hex head standard teks for steel up to 4.8mm, Series 500 screws for steel up to 8mm and our incredible Series 600 self drilling screws for fixing to steel up to a huge 15mm thick, this is a premium high performance screw, it is manufactured solely by us and is the only tek screw in Australia that can fix to steel this thick. Hex teks are available in Ceramic Screw Armour or Class 4 Galvanised and Gold Zinc Plate finishes.
The heavy duty range is completed by a range of countersunk teks in gold zinc plate and class 3 galvanised finishes and square drive wing tip tek screws for fixing timber to steel in a single operation. Follow the links below to find out more about each product:
- Hex Tek Screws Self Drilling Gold Zinc Plated
- Hex Tek Screws Metal Self Drilling Galvanised
- Series 500 Metal Tek Screws
- Series 600 Metal Tek Screws
- Tek Screws Self Drilling Countersunk Gold Zinc Plated
- Tek Screws Metal Self Drilling Countersunk Galvanised
- Wing Tip Tek Screws Timber to Metal Galvanised
Button, wafer head and flat top tek screws are listed in their own category here
Hex Head Tek Screws

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

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

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.
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