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Simpson Strong-Tie No. 8 Sizes X 2-1/2 in. L Square Trim Head Deck Screws 1500 pk

Simpson Strong-Tie No. 8 Square Trim Head Deck Screws deliver a durable, professional-grade fastening solution for outdoor decking projects. Crafted from stainless steel and finish…

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Typical Store Price i
Typical store price: low $177.99, average $209.99
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About Product Overview

Simpson Strong-Tie No. 8 Square Trim Head Deck Screws deliver a durable, professional-grade fastening solution for outdoor decking projects. Crafted from stainless steel and finished with a protective coating, these screws stand up to weather, moisture, and daily wear while maintaining a clean, flush appearance along the deck surface.

Why this screw stands out

  • Square drive for confident fastening—the square drive design reduces cam-out and provides easy, twist-resistant driving, even in tougher woods or dense boards.
  • Trim head for a neater look—the low-profile trim head sits closer to the surface, helping your deck boards stay flush and your lines crisp and uninterrupted.
  • Outdoor-ready stainless steel construction offers corrosion resistance and long-term performance in exterior environments.
  • -Coated finish for added protection—a durable coating enhances longevity without compromising driveability or strength.
  • 1,500-count boxed pack with driver bit included—bulk quantity for large projects and all-in-one convenience.
  • Non-collated for precise, hands-on installation—best suited for traditional, straight-down decking layouts where you want full control over each fastener.

Specifications at a glance

  • Brand: Simpson Strong-Tie
  • Product type: Deck screws
  • Size/Callout: No. 8
  • Length: 2-1/2 inches
  • Material: Stainless steel
  • Finish: Coated
  • Head style: Trim
  • Drive style: Square
  • Number in package: 1500
  • Packaging: Boxed
  • Indoor/Outdoor: Outdoor
  • Collated: No
  • Driver bit included: Yes

Ideal use cases and who benefits most

  • Professional contractors and serious DIYers installing exterior wooden or composite decking boards onto joists where a clean, unobtrusive fastening is key.
  • Projects demanding a flush finish with reduced screw visibility to preserve deck aesthetics—and avoid raised screw heads that can catch shoes or tools.
  • Large decking jobs where stock reliability matters: a 1,500-piece box keeps you on site longer without constant reordering.

Practical tips for best results

  • Use the included driver bit for quick setup and consistent torque.
  • Drive screws straight and stop just shy of fully seating to maintain surface flushness and prevent over-penetration.
  • Pair these No. 8 screws with appropriate deck boards and joists, and consider balanced spacing to minimize wood movement over time.
  • Store the boxed screws in a dry, cool area to preserve the coating and prevent rust accumulation on the head or threads.

The Details Specifications

Brand Simpson Strong-Tie
SKU 5000169
UPC 746056438816
Unit 0
Case Pack Quantity 1 per case
Retail Unit Quantity 1
Unit of Measure 5 BX
Dimensions (L × W × H) 14 × 11 × 4
Weight 13 lbs
Cubic Feet 0.3546 ft³
Country of Origin TAIWAN
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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