Simpson Strong-Tie Tie Down 60 x 315 x 50mm SKU: 329075 MODEL: HTT4 Error. try again later You've successfully joined the club $ 13 .85 each Mitre 10 SAvailable at selected stores. Check your local store for details Variants Heavy duty tie down. Features and benefits Can be used as a tension tie or a heavy duty hold-down. Z275 Galvanised for interior use.