1/4"-20 X 4" DeWalt Bi-Flex Self-Drilling Screws | Flat Head | Phillips Drive | Point Type 3 | Carbon Steel | DFSEBN640 (500/Pkg.)

Industrial fasteners engineered for high‑demand assemblies across manufacturing, maintenance, and equipment enclosures.

The 1/4-20 x 4 DeWalt Bi-Flex Self-Drilling Screw delivers reliable material engagement and installation efficiency across metal and composite substrates.

Specs

• Dimensions: Diameter 1/4", Length 4"
• Thread type: 1/4-20 UNC
• Drive type: Phillips Flat Head
• Material grade: Carbon Steel

Features

• Self-drilling point: Type 3 enables drilling of pilot holes into metals without prior pre‑drilling, improving installation speed.
• Bi-Flex design: Provides resilient bite and reduced cam-out under typical drive loads.
• Head style: Phillips Flat Head for flush mounting and compatibility with standard drivers.
• Material: Carbon Steel offers high strength-to-weight ratio and cost-effective performance in industrial environments.
• Packaging: 500 per package; product code DFSEBN640.
• Applications: Sheet metal assemblies, equipment enclosures, HVAC duct connections, and steel framing where self drilling capability is advantageous.