Once the threads get started, they will tap there way though the attaching materials. Self tapping screws only tap their own thread, so in most cases will require a pilot hole to get started.
Screws & Bolts,Self-Tapping Screws,Sheet Metal Screws
250 Pieces #8x1-1/4in Phillips Flat Head Type AB Self Tapping Sheet Metal Screws Zinc, 250PK
Specifications of 250 Pieces #8x1-1/4in Phillips Flat Head Type AB Self Tapping Sheet Metal Screws Zinc, 250PK | |
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Instock | instock |