ELCO UltraCon Concrete Screws: 1/4 x 6, HWH, Blue Stalgard Finish, Box of 100 3/16 X 3-3/4 The anchor is a Hex

The anchor is a Hex Washer Serrated head and is designed to allow the head to sit on top of the surface of the item being attached

and concrete block

the anchor must be installed so that a minimum of 2-3/4" of the anchor is embedded into the concrete

Long-lasting performance

Regular safety glass

ELCO UltraCon Concrete Screws: 1/4 x 6, HWH, Blue Stalgard Finish, Box of 100 3/16 X 3-3/4 The anchor is a HexThe Elco UltraCon (Tapcon concrete blue screws) masonry fastening system offers optimal performance in concrete, brick or hollow block whether anchoring electrical boxes, clips, wood headers, plywood, furring strips, insulation, etc. Cold formed, carbon steel anchors, precision cut carbide drill bits and high quality installation tools all work together to provide excellent pull out and shear values. UltraCon screws feature nail points and high low