1/4"-20 X 2-1/2" DeWalt Bi-Flex Self-Drilling Screws | Hex Washer Head | Point Type 3 | Carbon Steel | DFSEAJ640 (1000/Pkg.)

Industrial fasteners designed for metal-to-metal joining in commercial and heavy-industrial environments. The DeWalt Bi-Flex Self-Drilling Screw, Hex Washer Head, Point Type 3, constructed from carbon steel, delivers fast installation and secure seating in sheet metal and light structural assemblies.

Specs

• Dimensions: Diameter 1/4, Length 2-1/2
• Drive type: Hex
• Material grade: Carbon Steel
• Thread type: 1/4-20 UNC

Features

• Self-drilling capability: Eliminates pre-drilling in sheet metal, enabling high-speed installation and consistent thread formation.
• Bi-Flex design: Provides adaptability to slight thickness variations, reducing walk and stripping risk during assembly.
• Hex Washer Head: Allows flush seating with enhanced load distribution and improved resistance to loosening under vibration.
• Point Type 3: Sharpened tip geometry for controlled penetration and minimal wandering on metal surfaces.
• Applications: Suitable for metal roofing, enclosure fabrication, electrical cabinets, HVAC duct joints, and machinery guards where fastener reliability and speed are critical.
• Material compatibility: Carbon Steel base substrate provides strong shear strength and compatibility with common metal panels and structural members when used with appropriate protective coatings or environments.