Thread-Lock™ Aluminum Surface Mount Base - 10"High-strength aluminum surface mount base with anodized finish. Use with any Thread-Lock™ fixed-height post (sold separately). Can be used with...

2-3/8" Thread-Lock™ Fixed-Height Post - 13"Sturdy 2-3/8″ high-strength aluminum post for use while underway. Locking collar prevents unintentional removal from base. Use with Trac-Lock™ non-locking...

KingPin™ Standard Square Steel Base with Satin E-Coat - 7"x7"Standard square mild steel base with satin finish. 3″ below deck needed. Requires a 2-1/2″ hole in the deck.

KingPin™ Standard Square Steel Base with Brass - 7"x7"Standard square stainless steel base with satin finish. 3″ below deck needed. Requires a 2-1/2″ hole in the deck.

2-3/8" Plug-In Hi-Lo Replacement BushingReplacement bushing for 2-3/8″ Plug-In™ Hi-Lo seat mount. Helps to distribute the weight load across the top of the post.

2-3/8" Locking Fixed-Height Post - 13"Anodized to withstand all conditions. Heights are from the top of the post to the deck when the post is installed. Fits into any 2-3/8″ Plug-In™ base (sold...

Workhorse Air-Ride Slide & Swivel - 4"10-1/2″ x 14-1/2″ x 1/4″ aluminum formed slide plate with anodized aluminum finish and heavy-duty stainless steel lock pin. Large, easy-to-reach control knobs...

Elite Slide & Swivel - 4"8-1/4″ x 13″ seat mounting platform. Anodized slide and polish post mount fits over 4″ pedestals, locks and tightens securely to prevent wobble. Large pivot area ensures...

Universal Chair Mounting PlateAdapts a swivel mount to fit most seat mount patterns. High-strength aluminum. Use with any Springfield® marine swivel. Adds structural support to rotational molded...

2" Taper-Lock™ Hi-Lo BushingReplacement bushing for the top of 2″ Hi-Lo posts. For use on models 2020 and earlier.

2-3/8" Trac-Lock™ III Swivel BushingReplacement bushing for 2-3/8″ Trac-Lock™ III slides and swivels. Use on Trac-Lock™ III 2002 and newer.

Taper-Lock™ Seat Swivel BushingReplacement bushing for Taper-Lock™ Hi-Lo swivel. Washer included.