Simpson DTT1Z KT Deck Tension Tie Kit of 4 w SDS Screws, Zmax PACK:1 Kit Code compliant performance for structural applications Code compliant performance for structural applications the standoff design and increased uplift capacity make this base appropriate for code required installations in basements and in regions where wind or seismic loading is a design consideration reliable hold in wood to wood and sheathing applications code compliant connector solution engineered to secure a deck ledger connection to a home and to tie guardrail posts into deck framing without requiring access to interior floor joists Each kit contains (4) DTT1Z connectors