Welcome to Defender Canada! 
Springfield KingPin Round Base - 8" - 1620017-S
$59.40
Springfield KingPin Round Base - 8" - 1620017-S Item # 1379010
Description
Features:
- Below the deck mount, requires a 2 1/2" hole below deck
- Use with any standard or threaded KingPin post (not included, sold separately)
Specifications:
- Material: aluminum
- Finish: satin
- Diameter: 8"
- Pin: standard
- Bushing: nylon