Description
The Stainless Steel CSK 12G x 38mm Screw is a corrosion-resistant self-tapping fastener designed for aluminium fabrication, fencing, gate hardware and general metal fixing applications.
Manufactured from A2 stainless steel, the screw features a countersunk head and self-tapping thread for secure installation into correctly prepared aluminium and other compatible materials.
This is the recommended screw for securing the BPL100 Base Plate to the AE413 50mm Plain Aluminium Post when manufacturing your own stand-alone flanged posts.
Supplied as a box of 100 screws.
🔩 Recommended Screw for the AE413 Post
These screws are ideal for use with the AE413 50mm Plain Aluminium Post and BPL100 Square Base Plate system.
When manufacturing your own stand-alone post, the screws are used to mechanically secure the BPL100 base plate to the bottom of the AE413 extrusion.
This allows the plain post to be converted into a surface-mounted flanged post without requiring the base plate to be welded to the aluminium extrusion.
🧩 Complete the AE413 Stand-Alone Post System
These screws form part of the custom stand-alone post system we’ve put together.
A typical assembly consists of:
- AE413 50mm Plain Aluminium Post
- BPL100 100mm Square Base Plate
- 12G x 38mm Stainless Steel CSK Screws
- 50mm Post Cover Plate
- Flat End Cap for AE413
- Suitable structural anchors for securing the base plate to the mounting surface
This allows the AE413 extrusion to be cut to the required height and converted into a professionally finished stand-alone post.
📦 Box of 100
These screws are supplied in a convenient box of 100.
This makes them ideal for fencing installers and fabricators manufacturing multiple stand-alone posts or carrying out regular aluminium fabrication work.
Pack quantity:
- 100 screws per box
📏 12G x 38mm
Each screw has a nominal size of:
- Gauge: 12G
- Length: 38mm
The 38mm length is approximately 1½ inches.
This size provides the required reach for compatible AE413 and BPL100 post assemblies while also being useful for a range of other fabrication applications.
🔧 Self-Tapping Thread
The self-tapping design allows the screw to form its own mating thread as it is driven into a correctly sized pilot hole.
This makes it particularly useful when fastening components to aluminium extrusions without having to separately tap a machine-screw thread into every fixing point.
Correct pilot-hole preparation is important to achieve reliable thread engagement and avoid damaging the aluminium or stainless-steel fastener.
🔽 Countersunk Head
The countersunk head is designed to sit neatly within a correctly prepared countersunk fixing hole.
This provides a clean installation and reduces unnecessary protrusion from the mounting surface.
It is particularly useful when components such as cover plates need to fit neatly over the completed assembly.
🛡️ A2 Stainless Steel
Manufactured from A2 stainless steel, these screws provide good corrosion resistance for general indoor and outdoor applications.
A2 stainless steel is commonly used for external fasteners where improved corrosion resistance is required compared with conventional untreated carbon-steel screws.
This makes them particularly suitable for aluminium fencing, gates and screening systems.
🌦️ Ideal for Outdoor Aluminium Fabrication
The stainless-steel construction makes these screws well suited to outdoor fabrication applications.
Typical uses include:
- Aluminium fencing
- Stand-alone aluminium posts
- Privacy screens
- Pool fencing systems
- Gate fabrication
- Aluminium brackets
- Mounting plates
- General outdoor fabrication
For particularly aggressive coastal, marine or chemically exposed environments, fastener suitability should be assessed according to the environmental conditions.
🏊 Ideal for Custom Pool Fence Posts
These screws can be used when assembling the AE413 and BPL100 system to create custom-height stand-alone posts for suitable pool fencing applications.
The AE413 can be cut to the required height before the BPL100 is mechanically secured to the bottom of the post.
The completed post can then be structurally anchored to a suitable substrate.
Where used as part of a swimming pool barrier, the complete post and fencing installation must comply with applicable Australian Standards and local pool-safety requirements.
🪟 Perfect for Privacy Screen Posts
The AE413 and BPL100 system is also ideal for manufacturing custom stand-alone privacy-screen posts.
A box of 100 screws is particularly convenient for fabricators producing multiple posts for:
- Aluminium slat screens
- Privacy screens
- Courtyard screens
- Boundary screens
- Decorative screens
- Architectural screening
🔨 Useful General-Purpose Fabrication Screw
Although these screws are particularly suited to the AE413 post system, they can also be used for other compatible fabrication applications.
Typical uses include securing:
- Aluminium components
- Brackets
- Plates
- Gate hardware
- Fencing components
- Screen components
- Fabricated assemblies
Always confirm the screw size, pilot hole and available thread engagement are appropriate for the particular application.
Key Features
- 12G x 38mm self-tapping screw
- Supplied in a box of 100
- Recommended for the AE413 50mm Plain Aluminium Post
- Ideal for securing the BPL100 Base Plate to the AE413 post
- Allows custom stand-alone posts to be assembled without welding
- A2 stainless-steel construction
- Excellent general-purpose corrosion resistance
- Countersunk head
- Self-tapping thread
- Suitable for correctly prepared aluminium
- Ideal for fencing fabrication
- Ideal for privacy-screen posts
- Ideal for custom stand-alone posts
- Suitable for gate fabrication
- Suitable for general metal fabrication
- Suitable for many outdoor applications
- Convenient trade-size box of 100
Specifications
- Product: Stainless Steel Countersunk Self-Tapping Screw
- Size: 12G x 38mm
- Gauge: 12G
- Length: 38mm
- Approximate Imperial Length: 1½”
- Head Type: Countersunk
- Thread Type: Self-Tapping
- Material: A2 Stainless Steel
- Finish: Stainless Steel
- Pack Quantity: 100 Screws
- AE413 Compatibility: Yes
- BPL100 Compatibility: Yes
- Primary Application: Securing BPL100 Base Plate to AE413 Plain Post
- Other Applications: Aluminium Fencing, Gates, Screening & General Fabrication
Compatibility
These screws are recommended for use with:
- AE413 50mm Plain Aluminium Post
- BPL100 100mm Square Base Plate
- Custom stand-alone aluminium post assemblies
- Compatible aluminium fencing components
- Privacy-screen fabrication
- General aluminium fabrication
When building the AE413 stand-alone post system, these screws secure the BPL100 to the aluminium post.
They are not the structural anchors used to secure the BPL100 to the concrete or supporting structure.
⚠️ Please Note
Supplied as one box containing 100 screws.
These screws are suitable for securing the BPL100 Base Plate to the AE413 50mm Plain Aluminium Post when assembling the compatible stand-alone post system.
These screws are used for the base plate-to-post connection only.
They are not the structural anchors used to secure the completed post and BPL100 base plate to concrete or another supporting structure.
Structural anchors must be selected separately according to the substrate, post height, fencing system and loads imposed on the completed installation.
A correctly sized pilot hole should be used when installing self-tapping screws into aluminium. Avoid overtightening, as excessive torque can strip the thread formed in the aluminium extrusion.
Where the completed post forms part of a swimming pool barrier, the entire post, base plate, anchors and fencing system must comply with applicable Australian Standards and local pool-safety requirements.
