Simpson HDIA37SS 3/8" Hollow Drop-In Anchor - Zamac 3 and Stainless Steel, Pkg 50 BC/BCS Post Caps #3 Phillips drive: Common and

#3 Phillips drive: Common and easy-to-use drive system for fast installation

These connectors offer a unique anchor-hole pattern that permits anchorage to both concrete and structural steel

or temporary fixtures

ensuring maximum stability and support

ensuring a watertight seal

Simpson HDIA37SS 3/8" Hollow Drop-In Anchor - Zamac 3 and Stainless Steel, Pkg 50 BC/BCS Post Caps #3 Phillips drive: Common andThe 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.