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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
Thread Pattern: Spaced Thread
Pull-out testing conducted in accordance with AISI S905 using the alternate tension test (with adjustments to allow for large fastener diameters)
Dril-Flex Structural Screws are dual heat treated self-drilling tapping screws that provide the strength
1/4" x 2-1/4" DeWALT blue concrete screws
Fasteners coated with Stalgard® typically show no red rust or other base metal corrosion on significant surfaces after 1000 hours of salt spray exposure in accordance with ASTM B117
1/4-20 X 2 1/2 Thread Cutting Screws / Torx / Pan Head / Steel / Zinc / Type F Thread Pattern: Spaced Thread
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