ELCO UltraCon Concrete Screws: 5/16 x 5, Hex Head with Oversized Washer, Silver Stalgard Finish, Case of 250 ep The temples feature a 5

The temples feature a 5 point ratchet mechanism that allows for custom fitting

even in cracked concrete

Red Head C6+ is the highest strength adhesive in our history

It doesn't absorb moisture

1/4 x 3-1/4"   Material

ELCO UltraCon Concrete Screws: 5/16 x 5, Hex Head with Oversized Washer, Silver Stalgard Finish, Case of 250 ep The temples feature a 5The Elco UltraCon (Tapcon concrete silver 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