Screws for Fixing Outdoor Lights to Walls-GRK Fasteners No. 20 X 3-1/8 in. L Star Washer Head W-Cut Structural Screws

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The screws are using self tapping specially hardened steel screw, W-Cut thread design as zip tip, climatek coated, sharp threads and points to built in washer for interior or exterior use in carrying beams, ledger boards, stair rails, deck posts, playground equipment and other professional applications.
  • UPC: 772691122216
  • Manufacturer Part No: 12221
  • Brand Name: GRK Fasteners
  • Callout Size: No. 20
  • Length: 3-1/8 in.
  • Drive Style: Star
  • Material: Steel
  • Packaging Type: Clamshell
  • Indoor or Outdoor: Indoor and Outdoor
  • Self Tapping: Yes
  • Driver Bit Included: Yes
  • Diameter: 5/16 in.
  • Color: Yellow
  • Self Drilling: Yes
  • Finish: Climacoat
  • Number in Package: 100 pk
  • Thread Type: W-Cut
  • Head Type: Washer Head
  • Product Type: Structural Screws
  • Discovery - Convenience, Core, Super,
  • California residents see
    Prop 65 WARNINGS