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The DURO DYNE 14190 is a self-drilling screw with a hex, unslotted drive style. It features a #10 nominal diameter, #3 drill point size, and 16 TPI. This screw is constructed from 410 stainless steel with a zinc-plated finish, made through a cold-rolled process. It conforms to IFI-113 standards and has a 5/16 inch drive size.
Ideal for fastening 4-bolt flanges to ductwork. Quality tested through 1/8 inch cold rolled steel.
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