CONFAST 1/4" x 1-1/4" Concrete Screws 410 Stainless Steel Hex with Concrete Drill Bit for Anchoring to Masonry, Block or Brick (50 per Box): Amazon.com: Industrial & Scientific
3/16" x 1-3/4" CONFAST® 410 Stainless Steel Hex Washer Head Masonry Screw, 50/Box
Spit TAPCON Concrete Screws - E-Tech Components
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