DeWalt Eng. by Powers - Calk-In Machine Screw Anchor, 5/16"-18" - Pkg Qty 50

Calk-In Machine Screw Anchor, 5/16"-18" The Calk-In is a pre-assembled precision cast calking type machine bolt anchor which can be used in concrete, block, brick or Stone. The anchor consists of an antimonial lead alloy calking sleeve and a Zamac alloy internally-threaded expander cone.