Self drilling Screws Type 17 Tek Screws 12 x 20 – 12 x 115 (Packs of 100)
R40,25
Applications
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Perfect for fixing metal roofing or cladding to timber battens—works effectively in both hardwood and softwood.
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The self-drilling feature also allows penetration of thin metal sheeting up to ~0.75 mm without pre-drilling.
Fast Installation & Reliability
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The Type 17 design eliminates the need for pre-drilling, speeding up work and reducing labor.
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Helps minimize splitting or misalignment by clearing wood fibers efficiently during installation.
Spec Table (Example Overview)
| Feature | Specification / Detail |
|---|---|
| Point Type | Type 17 fluted, self-drilling |
| Head Type | Hex flange head; operated with 5/16″ hex socket or bit |
| Corrosion Finish | Zinc yellow (Ruspert / Class 3 & 4, AS3566 compliant) |
| Available Sizes | 12‑11 × 50 mm, 65 mm, 75 mm, up to 115 mm |
| Package Quantity | Packs of 100 screws |
| Application | Metal to timber fixing; suitable for hardwood/softwood battens |
| Metal Penetration | Can pierce thin sheets (~0.75 mm) without pre-drilling |
| Advantages | Fast installation, reduces labor, lowers splitting risk |
Full Product Description: Type 17 Self-Drilling (Tek) Screws, 12 × 20 mm to 12 × 115 mm (Packs of 100)
Product Overview:
These are Type 17 self-drilling screws—also commonly referred to as Tek screws—designed for fastening metal (such as roofing or cladding) directly into timber battens without requiring pre-drilling.
Key Features & Benefits
Point & Thread Design
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The Type 17 fluted, sharp gimlet-style point cuts into wood and clears sawdust as it advances, speeding up installation and reducing splitting or surface damage.
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The screw’s threads extend all the way to the point, helping to pull the screw in smoothly, reducing required pressure and risk of stripping.
Head & Drive
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Features a hex flange head that offers better torque transfer and stability.
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Typically driven using a magnetic hex socket (5/16″) or compatible power tool bit.
Corrosion Resistance
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Available with zinc yellow plating, often in Ruspert or Class 3/4 finishes, offering strong protection for outdoor and construction environments.
Sizes & Packaging
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Common sizes include 12‑11 × 50 mm, 65 mm, 75 mm, and longer lengths—suitable up to 12‑11 × 115 mm based on your need.
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Typically available in packs of 100, ideal for both small-scale and larger projects.
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