3/4 in. Double Expansion Shield, Zinc (10-Pack)

The Plumber's Choice double expansion shield is designed to insert into pre-drilled hole and set into place. It can be used in solid concrete, block, brick, and stone. Eliminates high stress points detrimental in fastening into materials. Constructed out of zinc material.

Designed to insert into pre-drilled hole and set into place
Can be used in solid concrete, block, brick, and stone
Eliminates high stress points detrimental in fastening into materials
Zinc alloy material, zinc finish
Length-3/4 in. outer diameter-1-1/4 in. inner diameter- 3/4 in.