BSW Fasteners

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BSW Fasteners

This topic has 22 replies, 15 voices, and was last updated 24 May 2021 at 22:43 by Chris Gunn.

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23 May 2021 at 16:35 #546595
Peter Ellis 5
Participant
@peterellis5
I need three 1/4" Csk x 1", ideally skt hd, to fix a backplate to a Burnerd chuck. Imperial is difficult in this neck of the woods. When I went onto Spaldings, they wanted four quid + per bolt !!

Where do you get Whit bolts from these days that aren´t asking silly money ?
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23 May 2021 at 16:35 #30139
Peter Ellis 5
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@peterellis5
23 May 2021 at 16:42 #546598
Martin Cargill
Participant
@martincargill50290
Ebay item number 133400343863

Martun
23 May 2021 at 16:42 #546599
Nigel Graham 2
Participant
@nigelgraham2
I don't know where your "neck of the woods " is, but in the UK at least…

1/4" BSW X 1" Csk socket-head : in the Emkay Screw Supplies catalogue at 45p each.

I know that because the catalogue arrived only this Friday with some other fastenings I had bought from them.

I think one or two others offer them too.

Edited By Nigel Graham 2 on 23/05/2021 16:44:35
23 May 2021 at 18:11 #546622
Bill Phinn
Participant
@billphinn90025
The Emkay site is new to me, and interesting.

One thing conspicuously wanting, though, is specificity regarding the material the various fasteners are made from. Are all the steel screws apart from the stainless ones just low tensile self-colour steel? Or can we assume the socket-head set screws at least are high tensile? If so, it would be useful to know the grade.
23 May 2021 at 18:14 #546624
Peter Ellis 5
Participant
@peterellis5
Thank you ! The eBay seller won´t post abroad, not even to my Irish consolidator, which is a pain, as they are much more reasonably priced. BREXIT seems to be isolating Britain.

I have put in an order to Emkay and I will see how he responds.

Previous searched hadn´t produced either of these.
23 May 2021 at 18:34 #546631
Speedy Builder5
Participant
@speedybuilder5
I don't know where your "neck of the woods " is, but … A location would help

If just plain csk, turn some hex bolts down to countersunk heads and put a sawcut in the head
23 May 2021 at 18:48 #546636
Mark Easingwood
Participant
@markeasingwood33578
Kayfast of Wakefield have them. Also available in their Ebay shop.

This should take you there.

184163726168
23 May 2021 at 18:55 #546638
Peter Ellis 5
Participant
@peterellis5
I live in Istria. I will check Kayfast. Thank you.
23 May 2021 at 18:55 #546639
Nigel Graham 2
Participant
@nigelgraham2
Bill –

Emkay does not specify the grade but I would imagine a chuck held only by three 1/4" coarse-threaded countersunk screws is hardly in the sort of territory where every last ounce per square inch of shear stress counts.

I'd be surprised if the original screws were anything special, though I'd trust a regular model-engineering supplier to sell reasonable-quality fittings rather more than anything on Eeh-by-eck.

'

Speedy-Builder –

I think Bill wants a rather more elegant solution than that but anyway he'd still need find 1/4" BSW bolts – and though he did say 'bolts', bolts or screws?
23 May 2021 at 18:57 #546640
Peter Ellis 5
Participant
@peterellis5
£4.01 per bolt and £17 to post them ! Some real spivs around these days !
23 May 2021 at 19:18 #546645
Andrew Tinsley
Participant
@andrewtinsley63637
Do you mean Spalding fasteners? If so, they have countersunk socket screws for 93 pence. They are 1.5 inches long so you need a hacksaw.

Andrew.

Edited By Andrew Tinsley on 23/05/2021 19:19:48
23 May 2021 at 19:25 #546647
Bill Phinn
Participant
@billphinn90025
Posted by Peter Ellis 5 on 23/05/2021 18:57:46:

£4.01 per bolt and £17 to post them ! Some real spivs around these days !

Are you overseas, Peter?

I can't find 1" long 1/4" BSW CSK socket head screws on Spalding's site, but I can find 5/8" long ones, or 1 1/2" in the bolts.

Putting three of the latter in my basket and entering my Manchester postcode gives me a grand total, incl. RM 1st class postage and VAT, of £4.01.

Can you explain the discrepancy between your price and mine? Were the 1" ones you saw made of radioactive titanium that could only be sent by courier, perhaps?

Edited By Bill Phinn on 23/05/2021 19:26:47
23 May 2021 at 21:21 #546672
Peter Ellis 5
Participant
@peterellis5
I don´t know. I just put in the search box and that is what it came up with. It didn´t mention cheaper ones. I don´t mind them longer, if that is all they have got, as obviously I can shorten them.

Cheers
23 May 2021 at 21:40 #546679
Mark Rand
Participant
@markrand96270
I've got most of a box of 1/4×1.25" BSW CSK slotted head screws. Got caphead and hex, but not countersunk. Her Majesty's Royal Mail seem to think that it would cost £3.05 to stick some in a jiffy bag and post them to an address in Istria for delivery in about a week.

If that's any good to you, message me with an address and they'll be in the post tomorrow.

Edited By Mark Rand on 23/05/2021 21:42:49
23 May 2021 at 22:10 #546684
Steviegtr
Participant
@steviegtr
Just looked on google earth as i have never heard of Istria. Yes you are a long way from us in the UK.

Steve.
23 May 2021 at 22:37 #546687
Ian P
Participant
@ianp
Purist might complain, but I would think that 1/4" UNC might be a lot easier to find and will hold the chuck in place.

Whitworth threaded fasteners are a getting rarer and rarer and certainly not used in new designs, whereas UN fasteners and threads are used in current production in some countries (well the USA at least)

Ian P
24 May 2021 at 04:54 #546708
Peter Ellis 5
Participant
@peterellis5
Posted by Steviegtr on 23/05/2021 22:10:41:

Just looked on google earth as i have never heard of Istria. Yes you are a long way from us in the UK.

Steve.

It is a nice part of the world and Trieste is only an hour away, although with COVID, I haven´t seen there in a year. It is relatively isolated from the rest of Croatia (and our COVID results are much better. No new cases at all yesterday) Other than the shipyards down in Pula (the former Austro-Hungarian Portsmouth – its military port), there is no engineering industry. They used to make big lathes over in Labin, at the Prvomaskja factory, but that has gone.

The lack of engineering limits local supplies. I can get metric fasteners in the local ironmongers, although nothing below M4 and there is a decent bearing factor locally. Metals (steel, SS and aly) come from the local builders merchant, but are of unknown specs and are aimed at tourist industry infrastructure. Someone down in Pula must do special steels but I have never found them. The local timber merchant has CNC cutting facilities and I can just give them a cutting list and they cut everything to size, which simplifies things.The local Lidl is handy, but you need to grab stuff when they have it.

Food and wine are excellent and cheap. The countryside is glorious, all vineyards and olive groves. I live in an old stone winery and for the first time, have room for decent metalworking and woodworking workshops. OTOH, there are no model engineers here. The internet makes things easier.
24 May 2021 at 10:01 #546744
pgrbff
Participant
@pgrbff
Posted by Peter Ellis 5 on 23/05/2021 18:57:46:

£4.01 per bolt and £17 to post them ! Some real spivs around these days !

I recently needed 2 1/2" BSW nuts and a few BSW washers. It's for a restoration so I didn't really want plated.

I was charged £15 postage and the stamp was less than £4. 2 nuts and 14 washers, and a jiffy bag.

DWS engineering,

I knew it would cost less than £4 to post but I had no alternative. I realise a business needs to make a profit but that I think is profiteering.

I'm in Italy.
24 May 2021 at 11:17 #546770
Hopper
Participant
@hopper
UNC will work and are more readily available. Same pitch as BSW in the smaller diameters. The difference in thread angle in mass produced fasteners between BSW and UNC is unimportant.
24 May 2021 at 11:21 #546774
JohnF
Participant
@johnf59703
Posted by Peter Ellis 5 on 23/05/2021 16:35:47:

I need three 1/4" Csk x 1", ideally skt hd, to fix a backplate to a Burnerd chuck. Imperial is difficult in this neck of the woods. When I went onto Spaldings, they wanted four quid + per bolt !!

Where do you get Whit bolts from these days that aren´t asking silly money ?

Peter, why countersunk ? I don’t recall ever seeing CsK being used and IMO socket head is far better, stronger, larger socket size thus better for torquing up.

John

PS if you don’t get fixed up PM me
24 May 2021 at 11:34 #546778
Oily Rag
Participant
@oilyrag
Not quite as rare as some would have you believe – when I was working in India (Tamil Nadu state) there were huge stocks of Whitworth and BSF bolts and screws of all descriptions available in the engineering suppliers shops. I brought some back with me, mainly BSF as they are the difficult to find ones. There is an Indian 'Unbrako' subsidiary factory still operating in pretty much the same way as the Royal Enfield motorcycle offshoot got overlooked by the administrators when the UK parent factory went bust.

Unfortunately my luggage allowance was only 45kg! But as the outward trip involved Bacon, sausages, and beef steaks (vacuum packed and deep frozen), plus decent cheddar cheese, Jacobs crackers and piccallili, plus some decent loose leaf tea (M&S Gold No. 3) plus Daddies brown sauce I had plenty of room for assorted tools to return.

Regards,

Martin
24 May 2021 at 22:43 #546940
Chris Gunn
Participant
@chrisgunn36534
Peter, I have standard cap screws in 1/4" Whit, and some hex socket button head if they are any good, but no countersunk apart from slotted like you have already been offerred.

Chris Gunn
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