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C4 Countersunk Wood Screws

10.99 (incl. VAT) (0.11/pc)
Article no: 40-9560-15
  • 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.
Stock status
Web stocks In stock
Availability in store
Select store
  • Select store
  • Reading, Broad Street
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.

Product Specifications

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, delivery & returns

At Clas Ohlson you can always shop securely and quickly. You will always have an open return policy up to 90 days. Your order will usually be dispatched within 2-3 days. Exception to this is the busy season such as Christmas.

Usual questions about returns

Clas Ohlson offers 2 year

Except where we state otherwise, we provide a two year guarantee on our products to cover materials and manufacturing defects and other defects that affect the product?s normal functioning under the guarantee period. This excludes consumable products, such as lightbulbs and batteries, which by their nature cannot be returned in a new or unused condition. For further information on other such consumable products excluded from the guarantee, please contact our customer service department on 0845 300 9799.

Read more in our terms and conditions of purchase

Clas Ohlson offers 2 year

Money back

Are you not happy with your purchase or have you changed your mind? Don't worry, at Clas Ohlson you will always have an open return of 90 days. To get your money back you must:

  • Show the receipt.
  • Return the product within 90 days.
  • Return the product and accessories in the same condition as they were when you bought them.

Read more about returns in our terms and conditions of purchase