DP300 1-3/4" Mechanical Fastener - Washer Only (1,000 Pieces/Box)

POLYPROPYLENE WASHER FOR EIFS AND LATH ATTACHMENTS

The DP300 EIFS PM Washer is a high-density, polypropylene washer designed to secure fiberglass mesh, wire mesh, or expanded lath over foam insulation boards. Ideal for polymer-modified stucco applications, this washer offers exceptional impact resistance and flexibility. Its low-profile design ensures flush seating, while the 1-3/4" diameter provides superior wind load holding capacity.

FEATURES AND BENEFITS

• Durable polypropylene construction – Provides excellent impact resistance and long-lasting performance.
• Low-profile design – Allows for flush seating to improve application quality.
• Keyhole design – Creates a strong mechanical bond with the EIFS base coat.
• Large 1-3/4" head diameter – Ensures extra holding power in high wind conditions.
• Versatile usage – Suitable for foam, plaster, lath, and plastic lath attachment.

SPECIFICATIONS

• Diameter: 1-3/4"
• Push Through Strength @ 10°: 256 lbs
• Push Through Strength @ 180°: 177 lbs
• Pull Over Strength @ 10°: 50.8 lbs
• Pull Over Strength @ 180°: 122.4 lbs
• Material: High-density polypropylene

APPLICATIONS

• Attaching rigid insulation to wood, steel, masonry, or concrete substrates.
• Supporting polymer-modified (PM) systems.
• Securing expanded lath or fiberglass fabric over rigid insulation.

NOTES

• The DP300 washer is not recommended for polymer-based systems.
• Washer only, screw sold separately. 

Designed for performance in temperature extremes, the DP300 EIFS PM Washer offers reliable impact resistance and secure attachment for a variety of stucco and insulation projects. Its ribbed, low-profile design ensures a professional and durable finish for all PM system applications.

RESOURCES

• Washer Comparison Brochure
• EIFS Manufacturers Fastener Approval