Elco - Con-Flex - 3/8" Diameter HFH, Hex Washer Head with Locking Serration (50 Per Box) (Click for Sizes/Weight) Size:4 1/2 x 2-3/4" Material

1/2 x 2-3/4"   Material

9 mm Price Unit of Measure C = 100 EA = 1 C Box Qty

Nail-Type Point guides the anchor into the pre-drilled hole

1 lbs Material Carbon Steel with Climaseal

Even after 2

Elco - Con-Flex - 3/8" Diameter HFH, Hex Washer Head with Locking Serration (50 Per Box) (Click for Sizes/Weight) Size:4 1/2 x 2-3/4" MaterialElco ConFlex Masonry Screws Enhanced ductility allows use in demanding exterior applications Con Flex masonry screws are engineered to provide high pull out and shear values with virtual immunity to brittle failures. _ ConFlex 3 8" and 1 2" diameter threaded fasteners engineered by Elco Construction Products provide high performance in masonry and concrete, even in exterior applications. Hex washer head with locking serrations prevents back out.