Heavy-Duty Tek Screws for Light Steel Sections & Brackets
These 25mm x 5.5mm hex head self drilling screws are designed for higher-load fixings into light gauge steel up to 5.0mm thick. With a larger 5.5mm thread diameter, they provide increased grip and holding power in metal-to-metal applications — making them ideal for brackets, rail systems, and structural sections where standard 4.2mm screws fall short.
The integrated washer-faced hex head allows for a firm clamping action, while the self-drilling tek tip ensures quick, pilot-free installation. These screws are supplied in trade-size boxes of 500 for added value on larger site jobs or repeat-use tasks.
The Bright Zinc Plated (BZP) finish provides corrosion resistance for interior and sheltered external applications.
Common uses: cladding support systems, signage frames, steel battens, M&E fixings, HVAC ducting, and perimeter rail fixings.
Technical Specifications of 25mm x 5.5mm Hex Head Self Drilling Screws
| Length (mm) | 25 |
|---|---|
| Gauge | 12 |
| Diameter (mm) | 5.5 |
| Head Type | Hex Head with Integrated Washer |
| Drive Type | Hex Socket |
| Drive Size | 5/16" (8mm) |
| Thread Type | Self Drilling |
| Thread Coverage | Fully Threaded |
| Point Type | Self Drilling (Tek Tip) |
| Finish | Bright Zinc Plated (BZP) |
| Material | Carbon Steel |
| Corrosion Resistance | Rated for internal use |
| CE Standard | BS EN 14566:2008 |
| Box Quantity | 500 pcs |
| Brand | TIMCO |
Want to match your screw colour to powder-coated materials? Try our RAL painted version for a clean, colour-coordinated finish.
Delivery times are Monday - Friday (excluding Bank Holidays) from 7:30am - 6:00pm. Most deliveries leave on Express Delivery for 1 - 3 working day delivery service. A 'working day' is Monday to Friday, excluding bank holidays. Weekends and bank holidays do not count as working days.
FREE 1-3 working day delivery service for all orders over £375 (excluding VAT). See our Delivery Page for further details.
Long Length Items like tile trims will incur a £9.99 delivery surcharge in line with our couriers. This surcharge is automatically added onto your order at the checkout stage.
Special 1 - 2 Day Shipping occurs when an item is sent to you direct from the manufacturer, usually on a next day service. This usually incurs a flat rate shipping charge of £15.99.
Click and Collect
We offer a free Click and Collect service on all stocked items at our main warehouse. Click and Collect orders are available for collection from 08:30am to 16:00pm Monday to Friday. Please allow 2 hours from your order to when you come and collect. Please wait for and bring your order confirmation paperwork with you. Collection address is Tile Fix Direct, Unit 1 Hollybush Lane, Ash Vale, GU11 2PX.
Delivery Damages
It's important that you indicate the damages on the delivery note when you sign for the goods. Notify Tile Fix Direct by emailing us or calling our advice line on 0333 320 04 24 if there are any damages or irregularities to your order within 24 hours of delivery.
Delivery times are Monday - Friday (excluding Bank Holidays) from 7:30am - 6:00pm. Most deliveries leave on Express Delivery for 1 - 3 working day delivery service. A 'working day' is Monday to Friday, excluding bank holidays. Weekends and bank holidays do not count as working days.
FREE 1-3 working day delivery service for all orders over £375 (excluding VAT). See our Delivery Page for further details.
Long Length Items like tile trims will incur a £9.99 delivery surcharge in line with our couriers. This surcharge is automatically added onto your order at the checkout stage.
Special 1 - 2 Day Shipping occurs when an item is sent to you direct from the manufacturer, usually on a next day service. This usually incurs a flat rate shipping charge of £15.99.
Click and Collect
We offer a free Click and Collect service on all stocked items at our main warehouse. Click and Collect orders are available for collection from 08:30am to 16:00pm Monday to Friday. Please allow 2 hours from your order to when you come and collect. Please wait for and bring your order confirmation paperwork with you. Collection address is Tile Fix Direct, Unit 1 Hollybush Lane, Ash Vale, GU11 2PX.
Delivery Damages
It's important that you indicate the damages on the delivery note when you sign for the goods. Notify Tile Fix Direct by emailing us or calling our advice line on 0333 320 04 24 if there are any damages or irregularities to your order within 24 hours of delivery.
