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Daggerz 1/4"-20" x 3-3/4" Phillips Flat Head Self Drill Screws with Wings - 500 Qty
International Fasteners

Daggerz 1/4"-20" x 3-3/4" Phillips Flat Head Self Drill Screws with Wings - 500 Qty

$221.23 - $221.23
$221.23
$221.23 - $221.23
$221.23
Availability:
In Stock
SKU SD4CTWW14334

Package Quantity: 500

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Uncover the full potential of this product

The 1/4;-20 x 3-3/4; Phillips Flat Head Self Drill Screw with Wings SD4CTWW14334 is designed for efficient metal-to-wood fastening applications. Featuring a #4 self-drilling point and precision wings, this screw drills through metal cleanly while preventing wood thread engagement until penetration is complete. The flat head design delivers a flush finish, while the Dagger-Guard coating provides corrosion resistance up to 1000 hours of salt spray performance.

  • Winged Self-Drilling Design

    • Wings ream wood fibers during drilling, preventing premature thread engagement and ensuring tight, damage-free metal-to-wood connections.


  • Fast Metal Penetration

    • #4 self-drilling point delivers quick, clean drilling through steel without pre-drilling.


  • Corrosion Resistance

    • Dagger-Guard coating provides up to 1000-hour salt spray protection for extended service life.


  • Flush Finished Appearance

    • Phillips flat head seats cleanly for a smooth, professional finish in exposed applications.


  • SKU / Part Number: SD4CTWW14334

  • Product Name: Daggerz 1/4″-20 x 3-3/4″ Phillips Flat Head Self Drill Screw with Wings

  • Brand: Daggerz

  • Thread Size / Type: 1/4″-20 (Unified Inch Thread, 20 TPI)

  • Overall Length: 3-3/4″ (3.75″)

  • Drive Type: Phillips (#3)

  • Head Style: Flat Head (countersunk)

  • Point Type: Self-Drilling Point (#4 Drill Point)

  • Wings: Yes (wings to ream wood before drilling metal)

  • Material: Low Carbon Steel

  • Finish / Coating: Dagger-Guard Coating™ (corrosion-resistant)

  • Application: Wood-to-Metal fastening; plywood to metal studs/joists

  • Country of Origin: Taiwan

  • Typical Pack Quantity: Often sold in bulk packs (e.g., 500 pcs) depending on supplier


Frequently Asked Questions

The wings enlarge the hole in wood to prevent thread engagement until the metal is fully drilled.

No, the #4 self-drilling point eliminates the need for pre-drilling in metal.

It is specifically designed for metal-to-wood applications; wings are not intended for metal-to-metal use.

Yes, the flat head design allows the screw to countersink flush with the surface.

Yes, the Dagger-Guard coating provides corrosion resistance suitable for exterior applications.