Mast Base Attachment Rail for T-Base 510-113

Seldén Mast Base Attachment Rail 508-161 is a stainless-steel rail used with compatible Seldén T-base mast-foot arrangements. It provides the deck-level mounting rail for the mast base and allows the mast-foot position to be set within the available adjustment range. This is a replacement component for existing Seldén mast-base installations rather than a universal fitting, so the current mast base and deck arrangement should be checked before ordering. Useful when refurbishing a worn mast step or replacing corroded deck-level hardware.