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Our warehouse is now CLOSED. You can still order as normal. We will fulfil on our return from 9th Jan 2025 (click for more details)
Our warehouse is now CLOSED. You can still order as normal. We will fulfil on our return from 9th Jan 2025 (click for more details)

Screw Technical Information

Screw Technical Specs

Point Types

Point Type
Use Cases
Image
Products
Self Drilling
This drill point is used for attaching to steel with thicknesses between 0.5mm and 6.0mm, depending on the length of the drill point and the TPI (Threads Per Inch). The type of head used with this drill point varies depending on the specific application.
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Self Drilling Series 500 / No. 5
This type of drill point is specifically designed for drilling through steel with thicknesses ranging from 6.0mm to 12.0mm, and often comes with a Hex Flange Head.
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Wing Tip
This type of drill point is commonly used for attaching wood to metal, such as attaching wooden pickets to a metal fence frame or sheet flooring to mezzanine floor joists. The wings on the drill point create a guide hole in the wood to prevent it from moving during installation. Once the wings come into contact with the metal frame, they break off.
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Type 17
This drill point type is frequently used for attaching to wood without the need for prior drilling. It is also able to drill through thin steel with thicknesses of up to 0.45mm.
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Needle Point
This drill point commonly utilises a dual helix thread known as a Twin Start thread, which allows for faster drilling and driving compared to traditional thread types. It is mainly used for attaching various materials to thin steel and wood.
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Chipboard Screws
This drill point is similar to the Needle Point, but uses only one helix thread. It is commonly used for various wood applications, particularly with chipboard.
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Head Type

Head Style
Description
Image
Bugle Head
This head style is typically used for attaching plasterboard in gauges up to 8, as it doesn't damage the surface of the sheet. 14 gauge screws with this head style are often employed for heavy-duty decking boards and landscaping.
Button Head
This screw type is frequently used to join thin steel pieces together, and the large head provides strong clamping force on the materials being attached.
Countersunk Head with Ribs
This head style is commonly used for a variety of wood applications where a flush finish is necessary for the attachment. The ribs countersink the screw into the wood. It is available in different drive types for different applications.
Countersunk Head without Ribs
This head style is commonly used with screws that are attaching to steel, when a countersunk recess has been previously drilled.
Flat / Flush Head
This head style is a low profile type commonly used when attaching cladding, such as when attaching plasterboard to a steel house frame.
Hex Flange Head
This head style is commonly used for various applications, such as roofing, cladding, and wood fabrication, and it comes in different gauges for heavier-duty tasks.
Pan Head
This head style is used with general-purpose fasteners to attach thin steel to other steel or wood substrates.
Self Embedding Head
This head style is primarily used for attaching cladding with thicknesses between 3-6mm, such as Cement Sheet or Blue Board. The ribs under the head countersink the screw into the material for a flush finish.
Trim Head
This head style is commonly used for decking or picket applications where a smaller head is necessary to prevent the wood from splitting during installation.
Wafer Head
This head style is primarily used for attaching various lighter materials to steel or wood substrates.
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