FastenMaster GuardDog Exterior Wood Screws - 1350 Count - 3-1/2"

Quick ID: Q58


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  • TORX ttap drive system eliminates strip-out
  • Nibs deliver a clean, finished look
  • Sharp Type 17 point for fast installation
  • Superior ACQ-approved, corrosion-resistant coating
  • Aggressive threads for strong holding power and withdrawal strength
  • Free T25 TORX driver bit included
  • Install two fasteners per deck-to-joist connection
  • Covers approximately 375 SF


FastenMaster GuardDog Exterior Wood Screws - 1750 Count is a versatile screw used in a variety of applications including pressure-treated decking, railings, stair stringers, deck frame blocking, dimensional headers, pergolas, and more. The TORX ttap drive system offers unmatched stick-fit and wobble-free installation, eliminating fastener stripping during installation or removal. The durable coating has been tested and approved for use in treatments such as ACQ and CA-B, as well as acidic woods like Cedar and Redwood. This fastener is guaranteed to protect against rust for the life of the project. Note: Corrosion guarantee does not apply when used in salt-water applications.

One pack of screws will cover approximately 375 square feet of surface area based on a fastening pattern of two screws per joist, spaced every 16", into standard 6-inch wide deck boards. Pre-drilling is recommended only when fastening within 1-1/2" of the end of board or when using hardwoods.


Manufacturer Part NumberFMGD312-1350
Sub BrandGuardDog
Coverage (Square Feet)375
Package Quantity1350
Screw Drive TypeTORX ttap
Screw Point TypeType 17 Auger Tip

Weights and Dimensions

Weight (Pounds)25
Length (Inches)3.5

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