FREE Delivery Over £30 Nett
15,000+ Stock Lines
30 Day Returns
Family Owned & Run
Celebrating 30 Years of Trading.
To mark 30 years of trading this month, we have reduced our carriage paid threshold to £30 nett.
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Evolution Bi-Metal stainless steel TEK-3 self-drilling tek screws are specifically designed for fixing into aluminium sheeting and panels from 1.2mm to 3.5mm thick. The 16mm EPDM washer creates a waterproof seal, making these ideal for securing roofing panels and exterior cladding. These tek screws are made from AISI A304 stainless steel and are then electro zinc plated to give extremely good resistance to rust. Stainless steel fasteners are required when fixings aluminium sheeting or into aluminium substrates.
Features
Specifics
Thread dia: 5.5mm
Head size (DK): 8mm Hex (5/16")
Washer dia. (W): 16mm
Length: 100mm
Thread length: 75mm
Rec. drill speed: 1500 - 2500 rpm
Drill point: TEK 3
Material: AISI A304 stainless steel
Finish: Electro zinc plated
Substrate thickness: 1.2mm - 3.5mm
Fixes from / to: Alu / Alu
Delivery Options
TC Fixings Ltd offers a range of delivery services across the UK to suit different order sizes and delivery times. Orders are dispatched using reliable courier and postal services to ensure products arrive quickly and safely.
Delivery Summary
Free delivery: Orders over £30 nett qualify for free delivery
Same-day dispatch: Orders placed before 15:00 Monday–Friday are usually dispatched the same day (subject to stock availability)
Collection: Available from our premises
Local delivery: Free van delivery available in Saffron Walden and surrounding villages
Free Delivery
Orders over £30 nett qualify for free delivery.
If your order is close to the threshold, adding additional items may allow you to qualify for free delivery.
Free delivery applies to standard mainland UK delivery only.
Delivery Charges
Orders under £30 nett are subject to carriage charges. Available delivery options are shown below.
Royal Mail Services (Up to 2kg)
| Service | Delivery Time | Cost |
|---|---|---|
| Royal Mail Standard 48 Tracked | 3–5 working days | £4.99 |
| Royal Mail 24 Tracked (Most Popular) | 1–3 working days | £5.99 |
| Special Delivery by 1pm | Next working day | £14.99 |
| Special Delivery by 9am | Next working day | £49.99 |
Royal Mail services are available for consignments up to 2kg.
Courier Services
| Service | Delivery Time | Cost |
|---|---|---|
| Standard Courier | 2–3 working days | £6.98 |
| Express Delivery (Most Popular) | 1–2 working days | £8.99 |
| Next Working Day by 13:00 | Next working day | £10.99 |
| Next Working Day by 11:00 | Next working day | £14.99 |
| Saturday Delivery | Saturday | £9.98 |
Orders placed before 15:00 Monday–Friday are normally dispatched the same working day, subject to stock availability.
Delivery Surcharges
Additional charges may apply in certain circumstances.
Extended Delivery Areas
Orders to the following locations may incur additional delivery charges:
Isle of Wight
Isle of Man
Scottish Highlands
Scottish Isles
Northern Ireland
Channel Isles
These charges will be shown at checkout where applicable.
Long Item Surcharge
Items measuring 1.5 metres or longer are subject to a £12 length surcharge per shipment.
Dispatch Information
Orders placed before 15:00 Monday–Friday are normally dispatched the same working day when all items are in stock.
Orders placed after this time, or on weekends and bank holidays, will be dispatched on the next working day.
Next working day delivery services apply Monday–Friday excluding bank holidays.
Collection
Customers may collect orders from our premises.
Collection orders are normally ready within 1 hour, provided all items are in stock. Please wait for confirmation before travelling to collect your order.
Local Van Delivery
TC Fixings offers a free local van delivery service to customers in Saffron Walden and surrounding villages.
Please contact our team for further information if you are located in this area.
Quantity WarningPlease be aware that this product only sold in multiples of 0.
5.5x25mm TEK-3
Drill Capacity: 3.5mm
SKU: EVFBMBW5.5-25-3
77 In Stock
£58.15
PER 100
5.5x38mm TEK-3
Drill Capacity: 3.5mm
SKU: EVFBMBW5.5-38-3
158 In Stock
£51.28
PER 100
5.5x38mm TEK-5
Drill Capacity: 12.5mm
SKU: EVFBMBW5.5-38-5
538 In Stock
£64.80
PER 100
5.5x50mm TEK-3
Drill Capacity: 3.5mm
SKU: EVFBMBW5.5-50-3
220 In Stock
£66.47
PER 100
5.5x50mm TEK-5
Drill Capacity: 12.5mm
SKU: EVFBMBW5.5-50-5
Out of Stock
£95.96
PER 100
5.5x65mm TEK-5
Drill Capacity: 12.5mm
SKU: EVFBMBW5.5-65-5
360 In Stock
£95.96
PER 100
5.5x75mm TEK-3
Drill Capacity: 3.5mm
SKU: EVFBMBW5.5-75-3
170 In Stock
£80.87
PER 100
5.5x100mm TEK-3
Drill Capacity: 3.5mm
SKU: EVFBMBW5.5-100-3
117 In Stock
£108.41
PER 100
5.5x100mm TEK-5
Drill Capacity: 12.5mm
SKU: EVFBMBW5.5-100-5
100 In Stock
£99.71
PER 100
