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DMI

DMI is a trusted name in fastening solutions, delivering performance-driven metal screw fasteners built to endure. Known for strength, consistency, and corrosion resistance, DMI offers a wide range of screw fasteners for metal used across structural, mechanical, and industrial applications. Their metallic fasteners ensure a tight, lasting hold even in high-vibration environments, making them a reliable choice for professionals in steel framing, HVAC, and heavy machinery assembly.

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    DMI DEKFAST™ #14 X 4" Roofing Screws, 410 Stainless, Phillips Drive, #3 Drill Point

    DMI
    Original price $786.00
    Original price $786.00 - Original price $786.00
    Original price $786.00
    Current price $393.00
    $393.00 - $393.00
    Current price $393.00
    10+ in stock

    Secure your roofing projects with the strength of DMI DEKFAST™ #14 x 4" 410 Stainless Roofing Screws, now available at a flat 50% OFF. Engineered with a durable 410 stainless steel body, a reliable Phillips drive, and a #3 drill points for smooth penetration, these screws are ideal for insulation attachment, metal roof decks, and high-corrosion environments. Perfect for professional installers who demand performance, consistency, and superior outdoor protection.

Tighten with Confidence: DMI Fastener Benefits


  • Precision-Crafted for Metal Applications
  • DMI’s metal screw fasteners are engineered with sharp threads and durable tips, ideal for penetrating steel, aluminum, and alloys without pre-drilling.


  • Corrosion-Resistant Finishes
  • Available in zinc, stainless, and coated options, DMI metallic fasteners resist rust and wear in outdoor and high-moisture environments.


  • High Holding Strength
  • Thread profiles are designed to deliver maximum grip and resistance to loosening in metal-on-metal installations.


  • Versatile Usage Across Industries
  • Whether in construction, sheet metal, or equipment assembly, DMI screw fasteners for metal meet job-specific needs with consistent reliability.


  • Fast, Clean Installations
  • Self-tapping and self-drilling designs speed up installations while reducing tool wear and material fatigue.


Frequently Asked Questions About DMI

Are DMI screw fasteners suitable for thick-gauge steel?

Yes, they’re designed to perform in both light and heavy-gauge metal applications.


Do DMI fasteners require pre-drilling?

Most are self-drilling or self-tapping, minimizing the need for pilot holes.


What sizes are available in DMI metal fasteners?

We offer a range of diameters and lengths to fit diverse structural and fabrication needs.


Are these fasteners corrosion-resistant?

Yes, DMI fasteners are available in multiple corrosion-resistant finishes.


Can I use DMI fasteners in HVAC ductwork?

Absolutely—they’re commonly used in HVAC and sheet metal applications.