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C4 Countersunk Wood Screws

10.99 (0.11/pc) (incl. VAT,  ex. delivery)

  • Countersunk wood screw type-approved by SITAC (Swedish Institute for Technical Approval in Construction).
  • Hardened, easy-drive screw for exterior constructions such as fencing and decking.
  • Corrosion class C4 – suitable for outdoor use in demanding environments.
Read more


Product availability

Available models :

Article No. Number per pack Dimensions Available In Stock Price Pcs
40-9560-1 15 5x60 mm Online

40-9560-2 15 5x70 mm Online

40-9560-8 100 5x70 mm Online

40-9560-3 15 5x80 mm Online

40-9560-9 100 5x80 mm Online

40-9560-4 10 5x100 mm Online

40-9560-11 100 5x100 mm Online

40-9560-5 10 6x80 mm Online

40-9560-6 10 6x100 mm Online

40-9560-7 10 6x120 mm Online

40-9560-16 100 6x120 mm Online

40-9560-10 100 5x90 mm Online

40-9560-15 100 6x90 mm Online

40-9560-17 50 6x140 mm Online

Type approved wood screws for exterior applications. Screws for outdoor use in demanding environments.

The screw is partially threaded which helps clamp the top piece of timber securely against the underlying piece of timber. The shank also has a double helix to help remove debris form the hole and improve clamping even under low loads. The slash point tip of the screw cuts through the fibres of the wood efficiently for improved driving and less likelihood of splitting when the screw is inserted close to the edge of the timber.

Hardened and countersunk wood screw type approved by SITAC, corrosion class C4. The screw is much harder than a regular stainless steel screw and is recommended for use with hardwoods such as oak, ash and larch. Quick-drive screw with a high corrosion resistance making it ideal for exterior use on constructions which are exposed to corrosive environments or in direct contact with the ground such as jetty posts, fences and uncovered decking.

The screw head has a hexalobular, star-shaped recess to provide a good drive with minimal risk of camming out.

Shopping info

Need help?

Click to chat with customer services or call 020 8247 9300

Number in pack 100 pc
Type of screwdriver bit T30 
Head Countersunk 
Corrosion protection class C4 
Stainless steel No 
For outdoor use Yes 
Length 90 mm
Diameter 6 mm
Packaging size 13 x 9.5 x 7.2 cm
Packaging weight 1.13  kg


Shopping info

Need help?

Click to chat with customer services or call 020 8247 9300

Clas Ohlson’s customer guarantee

Clas Ohlson’s customer guarantee

We are proud of our products and it is very important that you, as a customer, are happy with the service and products we provide.This is why we have a 2 year guarantee on most of our products and on specific products we leave a 25 year guarantee. The only exception is on consumables (such as batteries and light bulbs). Keep a look out for our guarantee-logo next to your chosen product to see what guarantee package it has. Our guarantee means that the product is expected to work just like we have described it during the time of guarantee we have promised (This in addition to the rights under consumer purchasing).

Read more in our Terms & Conditions

Shopping info

Need help?

Click to chat with customer services or call 020 8247 9300

Clas Ohlson's delivery info

Next Day Delivery: £4.99
Items under 30kg/1m
Order placed before 4pm.
(2-3 days for non UK Mainland)

Next Day Delivery Large Items: £9.99
Items over 30kg/1m
Order placed before 1pm.
(2-3 days for non UK Mainland)

Weekend Delivery: £7.99
Orders placed Fri before 4pm
or Sat before 12pm.
(Only for UK Mainland)

Click & Collect Next Day: FREE
Orders placed Mon - Fri before 4pm
or Sat before 12pm.

Read our frequently asked questions

Returns and refunds

If for any reason you are not satisfied with your purchase, or have changed your mind, we offer a up to 90 day refund policy from the date of purchase. To benefit from this refund policy, you must:

  • * Provide proof of purchase.
  • * Return the product within the up to 90 day period.
  • * Return the product and accessories in the same condition as when purchased.

Read more in our complete returns policy

Shopping info

Need help?

Click to chat with customer services or call 020 8247 9300

Shopping info

Need help?

Click to chat with customer services or call 020 8247 9300

Shopping info

Need help?

Click to chat with customer services or call 020 8247 9300

Useful products and solutions have been our passion at Clas Ohlson since 1918. Covering all things home, multimedia, electrical, leisure and hardware, we have 1000s of ways to help you solve everyday practical problems.


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Secure shopping
Minimum 2 year guarantee
Up to 90 day return policy

Postal service

Shipping & Delivery
Next day delivery as standard.
Shipping from £4.99
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How to pay

How to pay
We accept all major credit/debit
cards and PayPal.

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