Data East/Sega/Stern Hex Bumper Post 530-5679-00
Ships from US and is sold by Pinball Life$2.75
Metal post with a #6-32 female thread tapped top and a #10-32 thread bottom mounting stud.
Post is 2.2" overall length.
Data East/Sega/Stern #530-5679-00.
Jersey Jack Pinball #97-000101-00.