1/4-20 x 2-13/16 DeWalt Bi-Flex Self-Drilling Screw | Ph Head | Point | Carbon Steel | DFSEBN645 (100/Pkg.)
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1/4-20 x 2-13/16 DeWalt Bi-Flex Self-Drilling Screw | Ph Head | Point | Carbon Steel | DFSEBN645 (100/Pkg.)

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

DeWaltSKU: DFSEBN640
Price:
$1,115.56per 500( $2.23 each)
Pieces 500
Measurement type Imperial
Thread size 1/4-20
Diameter 1/4
Length 4
Material Carbon Steel
Finish Plain
Drive Phillips
Head style Flat
Point type Point Type 3
Threads per inch 20
Weight 21.43 lb

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to https://www.P65Warnings.ca.gov.

Description

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.

Can We Help?

If you’re not sure that this product is right for you, give us a call!
800-222-0324

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