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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A4 316 Stainless Steel Torx Cutter Wood Screws
Professional timber screws with ribbed, double countersunk heads & cutting slash point designed for timber to timber fixing where corrosion resistance and reliable performance are required. Manufactured from A4 stainless steel for durability in exposed and demanding environments.
Key features
• A4 stainless steel material for high corrosion resistance.
• Double countersunk head with reinforced design for flush seating.
• Integrated ribs under the head for improved embedment and grip.
• Cutting point reduces splitting and can often remove the need for pre-drilling.
• Torx (TX) drive for secure engagement and consistent power transfer.
• Optimised thread geometry for strong hold in a range of timber substrates.
Typical applications
• Structural timber joinery.
• Decking and cladding installations.
• Timber frame construction.
• External woodworking exposed to weather and moisture.
• Coastal and marine timber applications.
• Landscaping and site timber work.
Practical benefits
These A4 stainless screws are engineered for trade use in timber construction where corrosion resistance is essential. The double countersunk head sits flush with the surface for a clean finish and reduces the risk of head damage during installation. Ribs beneath the head help the screw embed cleanly, improving hold and appearance. The cutting point and optimised thread reduce the need for pre-drilling in many softwoods and hardwoods, saving time on site. The Torx drive maximises torque transfer and reduces cam-out, improving driving speed and consistency.
What are double countersunk head timber screws?
Double countersunk head timber screws have two bearing surfaces on the head to improve strength and sit flush with the work surface, reducing the chance of head shear and improving finish quality.
When should I use A4 stainless steel timber screws?
Use A4 stainless steel screws in external, coastal, or high-moisture environments where corrosion resistance is critical, such as decking, cladding, and timber frames.
Do these screws need pre-drilling?
The cutting point and ribs help reduce the need for pre-drilling in many timber species, but testing in the specific wood is recommended, particularly for dense hardwoods such as oak, robinia and iroko.
What drive type do these screws use?
These screws use a Torx (TX) drive for secure and efficient screw driving with reduced cam-out.
Can these screws be used in hardwood?
Yes. The cutting point and thread design make them suitable for a range of hardwoods, though pre-drilling may still be advisable in very dense timber.
Thread diameter (d): 5mm
Overall length (l): 80mm
Thread length (b): 48mm
Head diameter (dk): 10mm
Head height (k): 3mm
Torx recess (TX): TX25
Material: A4 (316) Stainless steel
Tensile strength: 500 N/mm2
Finish: Self-colour (no plating)
European Technical Assessment: ETA 11/0283
UK Technical Assessment: UKTA 22/6473
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.
3.5mm x 20mm
TX10 Drive
SKU: TCF91474-35020
1287 In Stock
£3.72
PER 100
3.5mm x 25mm
TX10 Drive
SKU: TCF91474-35025
2970 In Stock
£4.25
PER 100
4.0mm x 16mm
TX20 Drive
SKU: TCF91474-40016
10480 In Stock
£3.56
PER 100
4.0mm x 20mm
TX20 Drive
SKU: TCF91474-40020
10280 In Stock
£3.96
PER 100
4.0mm x 25mm
TX20 Drive
SKU: TCF91474-40025
13500 In Stock
£4.97
PER 100
4.0mm x 30mm
TX20 Drive
SKU: TCF91474-40030
15149 In Stock
£4.97
PER 100
4.0mm x 35mm
TX20 Drive
SKU: TCF91474-40035
414 In Stock
£6.44
PER 100
4.0mm x 40mm
TX20 Drive
SKU: TCF91474-40040
5300 In Stock
£7.13
PER 100
4.0mm x 45mm
TX20 Drive
SKU: TCF91474-40045
4400 In Stock
£7.81
PER 100
4.0mm x 50mm
TX20 Drive
SKU: TCF91474-40050
7300 In Stock
£8.46
PER 100
4.0mm x 60mm
TX20 Drive
SKU: TCF91474-40060
148 In Stock
£10.94
PER 100
4.0mm x 70mm
TX20 Drive
SKU: TCF91474-40070
2936 In Stock
£11.84
PER 100
4.5mm x 30mm
TX20 Drive
SKU: TCF91474-45030
8800 In Stock
£6.59
PER 100
5.0mm x 20mm
TX25 Drive
SKU: TCF91474-50020
2430 In Stock
£7.09
PER 100
5.0mm x 25mm
TX25 Drive
SKU: TCF91474-50025
9000 In Stock
£8.70
PER 100
5.0mm x 30mm
TX25 Drive
SKU: TCF91474-50030
9000 In Stock
£8.86
PER 100
5.0mm x 40mm
TX25 Drive
SKU: TCF91474-50040
2650 In Stock
£11.34
PER 100
5.0mm x 50mm
TX25 Drive
SKU: TCF91474-50050
2604 In Stock
£13.93
PER 100
5.0mm x 60mm
TX25 Drive
SKU: TCF91474-50060
2800 In Stock
£16.60
PER 100
5.0mm x 70mm
TX25 Drive
SKU: TCF91474-50070
1200 In Stock
£19.69
PER 100
5.0mm x 80mm
TX25 Drive
SKU: TCF91474-50080
4902 In Stock
£22.25
PER 100
5.0mm x 100mm
TX25 Drive
SKU: TCF91474-50100
3100 In Stock
£32.18
PER 100
6.0mm x 60mm
TX25 Drive
SKU: TCF91474-60060
1400 In Stock
£23.18
PER 100
6.0mm x 80mm
TX25 Drive
SKU: TCF91474-60080
1325 In Stock
£29.09
PER 100
6.0mm x 100mm
TX25 Drive
SKU: TCF91474-60100
2392 In Stock
£39.10
PER 100
6.0mm x 110mm
TX25 Drive
SKU: TCF91474-60110
1686 In Stock
£43.09
PER 100
6.0mm x 120mm
TX25 Drive
SKU: TCF91474-60120
900 In Stock
£47.27
PER 100
6.0mm x 130mm
TX25 Drive
SKU: TCF91474-60130
981 In Stock
£72.86
PER 100
6.0mm x 140mm
TX25 Drive
SKU: TCF91474-60140
2455 In Stock
£83.95
PER 100
6.0mm x 150mm
TX25 Drive
SKU: TCF91474-60150
1286 In Stock
£89.50
PER 100
8.0mm x 200mm
TX40 Drive
SKU: TCF91474-80200
492 In Stock
£194.40
PER 100
8.0mm x 250mm
TX40 Drive
SKU: TCF91474-80250
400 In Stock
£373.14
PER 100
8.0mm x 300mm
TX40 Drive
SKU: TCF91474-80300
400 In Stock
£389.29
PER 100
