DRAIN RODDING POINT SCREWS

[grober]

ANYONE know the dimensions /thread size etc of these old aluminium rodding point cover screws and are they still available?

 

[BigJase88]

Hard to say.

Well it's countersunk and if it may be 1/4" UNC

Hard to tell from a pic

Also if you get a screw and its galv or stainless you will get a reaction between dis-similar metals so put some copper slip on the threads which should help you get it out in the future. I dont think length of screw will be too important aslong as you have clearance for a longer screw

 

[optimusprime]

Should be easy to find them in a good hardware store , even if you have to cut them down.

 

[Petrol Pete]

Is there enough 'meat' on the housing to drill them out and install metric thread inserts ? Bit extreme I know .

Or try these guys.

Buying replacement manhole covers | Drainage Superstore Help & Advice

Buying a replacement manhole cover can be done in just a few easy steps to make sure day-to-day life isn't effected too much. Use our guide.

www.drainagesuperstore.co.uk

 

[AntMB]

Looking for a good screw, aren't we all

 

[optimusprime]

Do a search on this site .Found the one but might not be right one .

 

[Petrol Pete]

Should be easy to find them in a good hardware store , even if you have to cut them down.

I agree , but try finding a 'real' hardware store these days. My local one is now a small group of new build flats . Thankfully they still exist but are going the same way as Fishmongers/Butchers and bakeries these days. PS , I am not a pensioner longing for the 'old days'

 

[AntMB]

I agree , but try finding a 'real' hardware store these days. My local one is now a small group of new build flats . Thankfully they still exist but are going the same way as Fishmongers/Butchers and bakeries these days. PS , I am not a pensioner longing for the 'old days'

They're selling rodding point screws in Asda?

 

[grober]

Do a search on this site .Found the one but might not be right one .View attachment 128199

THANKS-- but then I saw 25-30 working days delivery-might still be worth a punt.

 

[Petrol Pete]

They're selling rodding point screws in Asda?

Dry cleaning , Key cutting & shoe repair, Pharmacy , Off Licence , clothing , bedding , kitchenware , Home electrics , Fuel , outdoor furniture , plants , AND newspapers & magazines ..!

Useful hardware has to be next !!

 

[grober]

Thanks to everyone who has responded.

 

[BigJase88]

Do a search on this site .Found the one but might not be right one .View attachment 128199

The thread looks too fine a pitch. That looks like an M6 thread.

The threads in the pic look coarse hence my guess it will be UNC C for coarse

 

[Bellow]

ANYONE know the dimensions /thread size etc of these old aluminium rodding point cover screws and are they still available?







View attachment 128193

Measure the outer diameter of the thread - that is its M 'number.
Measure the length of the threaded portion and divide it by the number of threads - that is its pitch.
Cross refer on chart below.


ISO 262 selected sizes for screws, bolts and nuts

Coarse	Fine	Coarse	Fine
Nominal diameter, D (mm)	Series	Pitch, P (mm)		Nominal diameter, D (mm)	Series	Pitch, P (mm)
1	R10	0.25	0.2	︙
1.2	R10	0.25	0.2	16	R10	2	1.5
1.4	R20	0.3	0.2	18	R20	2.5	2 or 1.5
1.6	R10	0.35	0.2	20	R10	2.5	2 or 1.5
1.8	R20	0.35	0.2	22	R20	2.5	2 or 1.5
2	R10	0.4	0.25	24	R10	3	2
2.5	R10	0.45	0.35	27	R20	3	2
3	R10	0.5	0.35	30	R10	3.5	2
3.5	R20	0.6	0.35	33	R20	3.5	2
4	R10	0.7	0.5	36	R10	4	3
5	R10	0.8	0.5	39	R20	4	3
5.5[a][8]	R20	0.9	0.5	42	R10	4.5	3
6	R10	1	0.75	45	R20	4.5	3
7	R20	1	0.75	48	R10	5	3
8	R10	1.25	1 or 0.75	52	R20	5	4
10	R10	1.5	1.25 or 1	56	R10	5.5	4
12	R10	1.75	1.5 or 1.25	60	R20	5.5	4
14	R20	2	1.5	64	R10	6	4
︙

If not 'exact' then refer to possible imperial sizes and convert the given dimensions in inches to mm and compare with your measurements.

Once you have the thread and diameter, search for countersunk set screw.

 

[Bellow]

Given it looks to be a coarser thread than metric, here is the chart for UNC >> Unified Thread Standard - Wikipedia
(copying and pasting the chart is confusing)

At a guess yours is around #10 .

 

[flying haggis]

would stainless self tappers be easier


or pop round to your neighbours garden when its dark........

 

[optimusprime]

Come on ,,this is not a mercedes screw ..Just a normal screw pull one out and inspect it .I would have one in my garage but longer than is needed . I never saw the postage times .

 

[geraldrobins]

Try contacting the manufacturer

https://hepworth.ae/product/upvc-underground-drainage-systems/

 

[Darrell]

You can pull the Rodding Eye out and fit a new one.

 

[Darrell]

Aluminium Oval Drain Rodding Eye Point 110mm https://www.amazon.co.uk/dp/B00KL9L...i_i_M1WTT361Y41KV9KG2FKN?_encoding=UTF8&psc=1

 

[ChrisEdu]

I pulled this out of a soakaway drainpipe the other day!