Mast base rivet size

I've been looking through postings regarding mast base repair, and I'm somewhat confused about the rivet size.

My H16 was built in 1981 and is 100% stock. The rivet diameter is 3/16" and I've seen rivet lengths recommended from 3/8" to 1/2". There are also varying grip lengths mentioned.

Can anyone clear this up, especially regarding the grip length?

BTW, I'm trying to get my cat on the water before my vacation ends in a few days, otherwise I would just order the rivets from a Hobie dealer.

_________________
Mark J
'81 H16

Shortest grip length to do the job is required. Tool long a rivet may pop before getting fully compressed.

Rivets are listed in the parts catalog... parts guides.

https://media.hobie.com/digital_assets/Hobie_Sail_August_2020.pdf#page=55

Base 8010131 RIVET POP 3/16x3/8 PH-SS (3)

https://www.hobie.com/parts-and-accessories/?q=8010131&hPP=20&idx=ItemGroup&p=0&is_v=1

_________________
Matt Miller
Former - Director of Parts and Accessory Sales
Warranty and Technical Support
Hobie Cat USA
(Retired 11/7/2022)