Hillman #12 - 14 x 1-1/2 In. Washer Head Self-Drilling Sheet Metal Screw (100 Ct.)

Hillman #12 - 14 x 1-1/2 In. Washer Head Self-Drilling Sheet Metal Screw (100 Ct.)

Marsoni

M251S

$41.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Hillman #12 - 14 x 1-1/2 In. Washer Head Self-Drilling Sheet Metal Screw (100 Ct.)Self drilling screws are manufactured for use in wood, fiberglass and metal. They possess a drill point which enables the screw to drill its own hole in thin gauge steel; no pre drilled holes are necessary. The sharp threads create their own mating thread when drilled into the material, and provide a stronger grip to your surface. Perfect for roofing construction, these screws have a neoprene washer that provides a water tight seal, and prevents

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Definitely better than the old plugs that probably had 80k miles on them. The one star off is because I had a misfire after installing. Not sure if I damaged the plug or what, but a reinstall didn't fix the misfire. In my genius, I rushed to try to gap it and ended up breaking the iridium tip. Put the old plug into cylinder 3 (where the misfire was) and it was fine. Gonna have to get a new single tomorrow at my local shop, but a bit frustrating to get a misfire after install.

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Reviewed in the United States on April 27, 2026

Verified Purchase

Britincali

Charlottesville, US

★★★★★ 5

Upgrade from OEM

After seeing a quite ludicrous $403 quote to change 4 spark plugs in a Mazda3 I decided to show my son how easy it is. These were an upgrade from OEM parts. They were gapped perfectly for the car. They took 20mins to fit and work fine.

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Reviewed in the United States on February 11, 2026