Simpson HDIA25SS Hollow Drop-In Internally Threaded Anchor 1/4" Stainless Steel PACK:1600 Pk enabling use in harder substrates

enabling use in harder substrates such as structural steel or extra-hard concrete when required

Featuring a low-profile trim head

Steel Epoxy-Adhesive Screen Tube for 3/4-in

The CMT 694

Simpson HDIA25SS Hollow Drop-In Internally Threaded Anchor 1/4" Stainless Steel PACK:1600 Pk enabling use in harder substratesThe Simpson Strong Tie HDIA25SS Hollow Drop In Internally Threaded Anchor is a flush mount expansion anchor engineered by Simpson Strong Tie for attaching threaded rod to support conduit, cables, and lighting across a wide range of base materials. Its versatile expansion design allows it to perform reliably in both hollow materials such as CMU and hollow core plank and solid materials including brick, normal weight concrete, and lightweight concrete,