Mutual Screw & Supply

#12 X 3-1/2" Self-Drilling (TEK) Screws | Flat Head Phillips Drive | Steel Zinc Plated (50 / Pkg.)

#12 X 3-1/2" Self-Drilling (TEK) Screws | Flat Head Phillips Drive | Steel Zinc - Main image
$6.9 $10 In stock

These #12 x 3-1/2" self-drilling screws are manufactured from Steel with a zinc plated finish, featuring a phillips drive and a flat head. They are well suited to drilling and fastening metal in a single operation.

  • Material and finish: Steel, Zinc Plated finish
  • Drive: Phillips
  • Head style: Flat
  • Thread size: #12
  • Length: 3-1/2"
  • Applications: Drilling and fastening metal in a single operation

Specifications

  • Product type: Self-Drilling Screws
  • Material: Steel
  • Finish: Zinc Plated
  • Head style: Flat
  • Drive type: Phillips
  • Thread size: #12
  • Length: 3-1/2"
  • Thread type: Self-Drilling (TEK)
  • Measurement type: Imperial
  • Pack quantity: 10 per package

Please note: This item is excess stock and is sold non-cancelable, non-refundable, and non-returnable. Please call us with any questions about this item before ordering.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Sebastian ★★★★★

These #12 screws bit right through the steel studs without any pilot hole—saved me a ton of time. The zinc coating looks clean and should hold up fine indoors.

John Q. ★★★★★

Really solid screws—I used them to fasten steel purlins to a metal frame and the self-drilling tip bit straight through without needing a pilot hole. The zinc plating seems durable so far, and the Phillips drive held tight without slipping under pressure.

Scarlett E. ★★★★★

The 3-1/2" length on these self-drilling screws is just what I needed for attaching heavy steel brackets. They bit right through without any pre-drilling, and the flat head sits flush perfectly.