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#10 x 2-1/2 in. Stainless Steel Star Drive Flat Undercut Composite Deck Screw Spanish in Walnut (100-Pack)

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  • Top of screw matches the color of the decking
  • Makes screws hidden for a seamless look
  • Bit is included in every box
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Product Details

#10 x 2-1/2 in. Star Drive NewTechWood Stainless Steel Composite Deck Screws are specifically designed to provide a clean, smooth and uniform finish in NewTechWood composite products. These screws feature extra deep star drive recesses, undercut heads, reverse threads, tri-lobular shanks, Type 17 auger tips. Made to match NewTechWood Colors.
  • Auger point: provides faster entry and splitting prevention
  • Star recess: allows for better torqueing and less stripping
  • Special head design: achieve better countersinking thanks to the nibs built-in to both head types, flat heads have greater strength at the reinforced neck and the trim head's diameter is so small that the head is hardly noticeable
  • ACQ-rated: approved for use with ACQ treated lumber
  • Return Policy



Screw Length2-1/2 inSize#10
Thread Pitch (mm)12 mmThreads Per Inch (TPI)12


Drive StyleTorxFastener ColorBrown
Fastener MaterialStainless SteelFastener PlatingStainless Steel
Fastener TypeComposite Deck ScrewsFeaturesNo Additional Features
Head StyleFlat UndercutIncludedDriver Bit, Screw
Interior/ExteriorExteriorMeasurement StandardUSS
Package Quantity100Product Weight (lb.)1.22 lb
Returnable90-DayScrew Head ColorSpanish Walnut
Thread StyleSpiral Thread

Warranty / Certifications

Manufacturer Warranty0

Questions & Answers

Q:Is this the screw I use on square edge solid decking, if so , do I just surface screw it like wood ?
by|Sep 14, 2023
1 Answer
Answer This Question

A:  Here's a link to our installation guide that has a section on fasteners: https://www.newtechwood.com/wp-content/uploads/2021/11/Decking-Installation.pdf

by|Sep 15, 2023
    Showing 1-1 of 1

    Customer Reviews

    4.8 out of 5
    • 4.8
      out of 7 reviews
    • 100% recommend this product
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    Showing 1-7 of 7 reviews
    They worked great, Thankyou for your prompt service,??
      Screws blends in and are hardly noticeable.
      • Verified Purchase
      • Recommended
      Very expensive but effective screws...
      Very expensive but effective screws
        These are very nice screws and matched the boards very...
        These are very nice screws and matched the boards very well. They are insanely expensive, but the final look was worth it. I did pre-drill, and that allowed them to drill to the right depth with ease.
        • Verified Purchase
        the screw penetrated fine but i had to pre drill...
        the screw penetrated fine but i had to pre drill pilot holes for every screw because heads of screw were to soft would start to strip at a little over 3/4 depth and once stripped very hard to either remove or continue penetration caused some scratches when removal needed
        • Verified Purchase
        This worked well on my Timbertech deck. I was...
        This worked well on my Timbertech deck. I was able to buy a small quantity to help me finish my project.
        • Verified Purchase
        Screws grip well and match my composite decking...
        Screws grip well and match my composite decking
        • Verified Purchase
        Showing 1-7 of 7 reviews