Junction box threaded waterproof plugs? Source?

[SmartCountryNerd]

I am looking for a bunch of junction box threaded plugs like I have in the attached picture. They are for Hikvision junction boxes. I need about 40 of them. Instead of having to buy new junction boxes just for them I was wondering if there was a place I could buy them individually or in a pack.

Looking for white.

 

[SpacemanSpiff]

I am looking for a bunch of junction box threaded plugs like I have in the attached picture. They are for Hikvision junction boxes. I need about 40 of them. Instead of having to buy new junction boxes just for them I was wondering if there was a place I could buy them individually or in a pack.

Looking for white.

Big box home-improvement stores

edit: home depot, etc

 

[TonyR]

Those are likely G3/4 (3/4 BSP) which is "British Standard Pipe", not the same as a U.S. 3/4" for our pipe thread size, I'm but not positive. I looked everywhere for blank white ones and found these red ones linked below. You could buy 1 and try it and if it works, get 50 for 53 cents each and spray paint them white, I guess.

EDITED 4/29 0721 CDT: Thread size M20 (metric) may also fit.

3/4-14 BSP / Gas x 1.307 Inch Quick-Fit Threaded Plugs - Red Low Density Polyethylene​

 

[lewic]

I personally got these that I use.

It's not a cap like the original but it does come with rubber plugs in case you are not using a conduit to cover the opening.

It comes with two of those ear plug looking nubs. Seems I lost one for this pack. This fits perfectly on my Hikvision and Dahua junction boxes.