Conduit on these fittings
- Thread starter Jupiter01
- Start date
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By the look of the bottom hole the black box, it already has female threads. If so these will be more useful.
https://www.screwfix.com/p/deta-tte-male-conduit-adaptors-20mm-black-2-pack/351vt or https://www.screwfix.com/p/deta-tte-male-conduit-adaptors-20mm-white-2-pack/138vt
The adaptive box didn’t have any threads and I opted for the female pack. (i didn’t try but guessing the male would have worked too?)
The light seems similar I.e. no thread but it doesn’t have a plug I can just push out.
Do I need to use one of those cone drill bits to put a 20mm hole into this?
Thanks again.
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Such a thing could probably be used to make a hole of some size or other. I certainly would not use one for any purpose ever.
A 20mm holesaw would be a more usual choice to make a 20mm hole.
With the female, the conduit goes into the adaptor. If you use the male, that is a smaller diameter and it goes into the conduit (making the conduit end smaller.
10 years on this forum and 4000 posts and you still dont know how to drill a hole?
PS You need to seal the rear hole into the light fitting or it will fill with water. Take it off teh wall, and really squidge a lot of silicone sealant between the fitting and the wall. Drill a drain hole in the bottom of the light fitting too.
Thanks. As I understand it, both would work right?
I opted for the female as it had a chunkier retaining nut and provide waterproofing with the conduit going into the fitting.
There is no single way of creating this hole and I certainly haven’t devoted my ten years to understanding how to create holes! On occasions, there are knockouts that you can just push out and then we have a number of options to create this hole. That’s all I was checking on.
Thanks for your tip on the sealant and drain hole.
Experience shows that even supposedly waterproof fittings leak water in eventually therefore a weep hole at the bottom point (preferably reverse side as it tends to have greater protection from rain etc) but as tiny a hole as possible to drain water but deter penetration by insects and dust, often approx 45 degrees on the corner between the back edge and the bottom edge is best choice, off course that might nullify any IP XX rating of the unit.
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