1. Masonry Screw Anchor Hexagonal Flange Head description: Fasten into concrete, brick and hollow block using Masonry Screws. This masonry anchor cuts its own threads in a predrilled pilot hole. No inserts are needed, making installation fast, and the screws can be removed. Use as a replacement for plugs and small diameter expansion anchors in light to medium duty applications. Available in Slotted Hex Washer, Hex Flange and Phillips Flat heads. Install using Condrive too.The masonory screw is Quick and easy operation. For use with standard ANSI-tolerance drill bit; no special tolerance drill bits are required Tested and evaluated according to AC 193 for uncracked concrete and AC 106 for grout-filled CMU blocks Suitable for reduced edge distances and spacing Quick and easy to install with no high-accuracy torque wrench required Fully-removable anchoring solution 2. Item Photo: Masonry Screw Anchor Hexagonal Flange Head 3. Workshop 4. Quality Inspection: 5. Various Packing 6 Warehouse & Loading 7. Contact Information: Http://www.gwfastener.com Skype; gwfastener Cell: +86 133 9331 6326 ( We are at service in 24 hours, 365 days)