Bulk 1/4-20 Phillips Flat Undercut Thread Cutting Screw Type F, 18-8 Stainless Steel, Full Thread


Length: 1000 Qty - 1/4-20 x 3/8"
Price:
Sale price$450.30

Description

MonsterBolts 1/4-20 Phillips Flat Undercut Thread Cutting Screws - Type F, 18-8 Stainless Steel

Monster Overview:

Fix your project right the first time with 1/4-20 Phillips Flat Undercut Thread Cutting Screws – Type F, 18-8 Stainless Steel from Monster Bolts. These fully threaded flat head screws feature an undercut design that allows for longer thread engagement in limited space — perfect for applications where full head height isn't possible but strength is essential.

Made from corrosion-resistant 18-8 stainless steel (A2 / 304), they’re designed for cutting their own threads into pre-drilled holes in thicker metal. The Type F point ensures clean, controlled thread formation and excellent pull-out strength in materials like aluminum, brass, or mild steel.

Monster Features:

  • Material: 18-8 Stainless Steel – Durable and rust-resistant.
  • Thread Cutting: Type F point for strong thread engagement in thicker metal.
  • Head Style: Flat Undercut – Allows for maximum thread length in shallow countersinks.
  • Drive: #3 Phillips – Compatible with standard screwdrivers and bits.
  • Applications: Ideal for electronics, hardware plates, brackets, and flush mount hardware where strength and appearance matter.

Monster Specifications:

  • Thread Size: 1/4"-20 (UNC – Coarse)
  • Length: Fully Threaded – Choose length from menu above
  • Head Style: Phillips Flat Head – Undercut Style
  • Drive Size: #3 Phillips
  • Material: 18-8 Stainless Steel (A2 / 304)
  • Finish: Plain (Uncoated Stainless Steel)
  • Cutting Type: Type F – Requires pre-drilled or punched hole
  • Standards: ASME B18.6.4 compliant

Note: These screws are not self-drilling. Use a properly sized pilot hole for best performance in metal installations.

Order Yours Today and Experience the Monster Bolts Difference!

Buy with confidence! Every order from Monster Bolts is backed by our commitment to quality, fast shipping, and customer satisfaction.

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