Any question answered...

Need help please. Any idea what you call the screw type pin-like bolts you can use to connect a chain as oppose to a traditional master link, or better yet where might you be able to get one? Cheers!

PS
It's for a D.I.D Racing Pro NJS chain if that makes a difference...

It's a screw master link. I'm guessing any other NJS one should fit an NJS DID, which would be handy because Izumi is the only one you're likely to find for sale separately. I'm also guessing it would be a lot simpler and quite possibly cheaper to get a proper chain