Exterior Wood Screw Deck Screw Multi Purpose Square head, No 2 Square drive

£ 6.90 Exc. VAT
£ 14.40 Exc. VAT
£ 48.00 Exc. VAT
£ 7.80 Exc. VAT
£ 16.50 Exc. VAT
£ 56.00 Exc. VAT
£ 8.35 Exc. VAT
£ 18.50 Exc. VAT
£ 68.00 Exc. VAT
£ 9.80 Exc. VAT
£ 17.80 Exc. VAT
£ 65.00 Exc. VAT
£ 11.90 Exc. VAT
£ 19.90 Exc. VAT
£ 60.00 Exc. VAT

From Carpenters Mate the UK’s original self-drilling screw suppliers

Our super-strong exterior wood screws feature a self-countersinking square drive head and are manufactured from the same corrosion-resistant carbon steel as our heavy duty Pro Hex screws, making them perfect for outdoor applications such as wooden decking. 

Specially designed to provide strong and durable wood-to-wood connections that can withstand all weather conditions, Carpenters Mate exterior wood screws also feature a pressure-treated timber finish to ensure the appearance of your decking isn’t affected. View more deck screws and landscape screws here.


  • Recommended for use in decking
  • No pre-drilling required
  • Self-countersinking head style
  • Corrosion resistant performance
  • Pressure-treated timber colour
  • Specially designed for wood-to-wood connections


  • Floors
  • Decks
  • Structures
  • Roofs
  • Landscapes

A structure is only as safe - and long-lasting - as its connections. Carpenters Mate screws are the only screws we recommend for durable, strong construction you can stake your reputation on.

Luke Whale, C4CI Structural Engineers Luke Whale, C4CI Structural Engineers
For more information about all our products, please call us on 0845 241 9862