Technical Specification
ProductDecking Screws
Head TypeTrim Head, Countersunk Self Embedding Flat Head
Screw Size10g (4.80mm)
Thread Pitch (TPI)12
Thread Length33mm
Overall Length50mm
Head diameter - Approx8.5mm
Nibbed6 ribs under the Head
Drive SizeSquare No2 x 25mm
Driver Bits IncludedYou will receive a minimum of 2 x No2 x 25mm Square Drive Bits
Installation Tools IncludedMacsim 10g TRIM HEAD Clever Tool + Driver Bit
Type 17 PointTo help when drilling into timber
MaterialStainless Steel
GradeA2-70 G304
Size of board19 - 25mm hardwood and softwood board
Recommended Embedment into Joist25mm
Brand - Our DiscretionFG / Macsim
This Pack Quantity50
Product Information
  • These screws have a trim head size and have become the most common screw used to fasten 19-25mm timber boards in both hardwood and softwood for your decking and fencing projects
  • Square drive for leverage when tightening and for a neater finish
  • We recommend using a clever tool, for more information check our technical help page found in our store
  • To check how many screws you require for your project check our technical help page found in our store
  • This kit includes a Macsim Clever Tool, a video on how to use it is available by clicking on this link https://www.youtube.com/watch?v=p1W_SWBeRHY
  • Replacement drill bits are available in our store under "Tools"
  • Stainless G304 offers high level corrosion resistance
  • Photos are for illustrative purposes only and may not be the actual diameter or length
  • Every effort has been made to ensure all measurements are accurate, they should only be used as a guide
  • Our stock is sourced from various manufacturers, therefore differences may exist between batches such as visible stamped head markings and thread lengths, we will only ever ship the same brand per delivery
  • The length of a decking screw is measured overall, from the top of the head to the end of the thread
  • Manufactured to AS3566.2
  • A Tax Invoice will be included with every order
  • Need help? message us through eBay
  • If you are looking for another type, diameter, length, width, material or pack size use the store search box on our store page
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