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 anti-monial lead alloy calking sleeve and a Zamac alloy internally threaded expander cone.

DeWALT® Machine Anchor Bolt, Series: Calk-In™, UNC, 5/16-18, 3/4 in Thread Length, 5/8 in Drill, 1 in Minimum Embedment Depth, Antimonial Lead Alloy/Zamak Alloy

• Readily accepts machine bolts
• Internally threaded anchor for easy removability and service work
• Shallow embedment
• Normal weight concrete, grout filled concrete masonry (CMU) and brick masonry suitable base materials
• 7 ft-lb max tightening torque

• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Powers_9201_Specification_Sheet.pdf https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Powers_9201_Specification_Sheet.pdf