3/16" X 2-3/4" Hex Head Blue Concrete Screws to Anchor Masonry, Block – Bridge Fasteners
Velocity Concrete Screw Kit with RedSeal Moisture Barrier – Includes 12 High-Performance Concrete Screws, 1 Drill Bit, and 1 Driver Bit (Flat Head, Size 1/4” x 2 1/4”): Amazon.com: Industrial & Scientific
CONFAST 1/4" x 1-3/4" Concrete Screws 410 Stainless Steel Hex with Concrete Drill Bit for Anchoring to Masonry, Block or Brick (50 per Box) : Amazon.ca: Tools & Home Improvement
How to screw into concrete - CELO Fixings Technology Blog
Masonry Concrete Screws
StarFix® Masonry Screw
Masonry Screw Bolt Galvanised & Masonry Drill SDS Bit