Double dog

[PeteRocck]

Hi all, I know this topic has been brought up frequently but I've tried to search threads for my answers with no luck.
I have 2 505hs's and 2 mag 10's that I'd like to install double dogs on. My question is, can someone help me with which type/brand or what they came out of dogs to buy and use? Also how are you all fastening them to the bridge? I've seen many different kinds what looks like some type of rivet or a small clevis pin with C clip maybe a shouldered screw. Also what are you guys using for the spring steel tensioner?
Thanks in advance,Pete

[Bryan Young]

https://www.prochallenger.com/product/jigmaster-500-501-ss-double-dogs-bridge/41?cs=true&cst=custom

Looks to be in stock.

[PeteRocck]

Doesn't fit 505 or mag 10