Simpson HDIA37 3/8" Hollow Drop-In Anchor - Zamac 3, Pkg 50 Deck Ties finished appearance and is ideal

finished appearance and is ideal for countersunk applications where flush seating is desired

Strong-Tie Quik Drive CB3BLG fiber-cement board screws are designed to quickly and easily fasten dense fiber-cement boards to wood

3" or 4 1/2" screws may be substituted for the longer length screws with no load reduction

leaving a clean finish while pulling boards tightly to framing

Ideal for overhead

Simpson HDIA37 3/8" Hollow Drop-In Anchor - Zamac 3, Pkg 50 Deck Ties finished appearance and is idealThe Simpson Strong Tie Hollow Drop In Anchor (HDIA) is an internally threaded, flush mount expansion anchor for use in hollow materials such as CMU and hollow core plank, as well as in solid base materials such as brick, normal weight and lightweight concrete. The expansion design allows anchoring to CMU, hollow core plank, brick, normal weight concrete and lightweight concrete while the internally threaded anchor allows for easy bolt removal.