Nylons screws anyone

[SPARTYKUS]

Hello

anyone got a good punt for purchasing nylon screws, you know, for houses with no cpc on the lighting kind of thing..?

I know you can get them, I have tried my friend google, and the search function on here.

anyone help.....

 

[Andy78]

Last set I got were from ebay... but they are pretty crap as they strip easily.

Use a brand of switch with screw covers like Hager.

 

[plantpot]

Got some for the very job a couple of years ago off ebay, think I searched 3.5mm countersunk nylon screws

 

[telectrix]

you usually find that where there is no cpc on lighting, the back boxes have nylon lugs for the screws.

 

[uksparks]

Are these for faceplates etc?

 

[uksparks]

you usually find that where there is no cpc on lighting, the back boxes have nylon lugs for the screws.

Or wood.

 

[telectrix]

Are these for faceplates etc?

well, they ain't for fixing his back boxes.:ack2:

 

[SPARTYKUS]

Hi chaps, yes for faceplaces, Tel, its in a bodgers house so there metal backboxes with no cpc and metal screws.....

thanks for all replies. i have bought some from RS. not cheap but need em and it'll be good to have some spare.

 

[uksparks]

Can you post a link up please to the item on RS as I might get some.

 

[Marvo]

I was going to suggest RS as long as you don't need large quantities, they're very handy for tricky bits and pieces but you wouldn't mistake them for being cheap.

Another option is Skiffy but I'm not sure if they service the UK market.

 

[SPARTYKUS]

Can you post a link up please to the item on RS as I might get some.

6040426 | Plain Nylon Flat Head Machine Screw, M3.5 x 25mm | RS

there ye go young man.

 

[SPARTYKUS]

Thanks Marv me old fella me ol' pal me ol' chum, 'eck as like, etc etc.

whats skiffy....

 

[Marvo]

Skiffy are a really useful supplier for little plastic parts like PCB stand-offs and odd clips and screws etc.
Skiffy plastic parts, Skiffy metal parts, components

After a bit of Googling they do appear to be in the UK.

 

[telectrix]

Skiffy is an Iffy kangaroo.

 

[netblindpaul]

Just throwing in a curve ball.
Are they actually necessary?
Take a long hard look at the access, and the requirements...

 

[SPARTYKUS]

Come on the netblindpaul, explain!

Briefly, Iwould say yes, they are at least a good idea, the three I looked at are not earthed in any way. If a live cable became wayward and touched the casing (yes, 10,000,000 to one) and then someone touched the screw (multiply by 60,000) they might get a shock.

thought it was that simple (albeit unlikely).

 

[Midwest]

What about rewiring?

 

[SPARTYKUS]

What about rewiring?

What about it!

its not that kind of job. Its not an option.

 

[Spoon]

£7.57 is not that bad for 100. uksparks could always send you £3.80 and you could post 50 to him. get some money back.

 

[SPARTYKUS]

Its a deal

 

[Midwest]

What about it!

its not that kind of job. Its not an option.

What sort of job is it? Just thinking if you've informed the client of the issues/dangers, how far should you go, or have you alter/amended circuit with no cpc?

 

[netblindpaul]

Come on the netblindpaul, explain!

Briefly, Iwould say yes, they are at least a good idea, the three I looked at are not earthed in any way. If a live cable became wayward and touched the casing (yes, 10,000,000 to one) and then someone touched the screw (multiply by 60,000) they might get a shock.

thought it was that simple (albeit unlikely).

Well my gut feeling is that the front of a fitted light switch would be IP20, though I would have to check the actual test method.
Look it up?
Does a nylon screw have sufficient mechanical strength?

 

[Deleted member 26818]

I hope the face plates are plastic, not metal.

 

[DPG]

I'm also doubtful about the mechanical strength. Especially if the threads have become damaged/part stripped on a dodgy back box lug. The trouble is if you go for the plastic cover caps then they are easily lost and no-one will think to replace one that has gone missing. Daz

 

[richy3333]

Hi chaps, yes for faceplaces, Tel, its in a bodgers house so there metal backboxes with no cpc and metal screws.....

thanks for all replies. i have bought some from RS. not cheap but need em and it'll be good to have some spare.

Well, that was a lost opportunity to pretend to be a Electrical Trainee, convince the customer the house was dangerous and sell them a rewire with a new metal clad CU for a zillion bucks!

 

[Risteard]

The trouble is if you go for the plastic cover caps then they are easily lost and no-one will think to replace one that has gone missing. Daz

The other problem with them is they have not been designed to prevent electric shock. Even if they could not be removed could you state with confidence that you had a Class II construction?

 

[SPARTYKUS]

Well they arrived (a day late). Screwed one into a patress and subjected it to 'considerable force'.

didn't knock a feather out of it, so wouldn't worry about mechanical strength.......

 

[SPARTYKUS]

And yes spin the face plates aren't metal.....

 

[SPARTYKUS]

And .....and....

 

[telectrix]

run a tap through the lugs just to be sure.

 

[SPARTYKUS]

Good point Tel I tried em on a new 'un