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A4 Acid-Resistant Steel Decking Screws

12.99 (incl. VAT) (0.06/pc)
Article no: 40-9546-3
  • Decking screws made of acid-resistant A4 stainless steel.
  • Having the highest corrosion class, C5, these screws can withstand the harshest conditions.
  • They are perfect for exterior constructions such as jetties, wooden decks, rails and stairs.
  • Stainless steel screws that are slightly elastic for high stress resistance.
Stock status
Web stocks In stock
Availability in store
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  • Reading, Broad Street
A decking screw designed to withstand the toughest environments making it ideal for use below ground or in coastal areas.

The screw is partially threaded which means that the decking board is clamped securely against the underlying joist. 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.

This decking screw is made of A4 acid-resistant steel with the highest corrosion class, C5. The stainless steel screw is relatively elastic and capable of withstanding high stresses, especially when the timber decking boards expand and contract during use. The screws are not affected by corrosive agents such as salt which makes them ideal for applications involving long-term exposure to harsh conditions such as in marine environments and below ground. They are perfect for exterior constructions such as jetties, wooden decks, rails and stairs.

The screw head has a T20 recess to provide a good drive with minimal risk of camming out.






Product Specifications

Number in pack 200 pc
Type of screwdriver bit T20 
Screwdriver bit included No 
Head Countersunk 
Fully threaded No 
Corrosion protection class C5 
For outdoor use Yes 
Length 42 mm
Diameter 4.3 mm
Material A4 
Packaging size 9.5 x 7.2 x 6.5 cm
Packaging weight 545  g

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