Can anyone recommend where to buy the size and style of rivets used in flieger-style straps? I am guessing these are a type of Chicago screw, but I can't find anything suitable on eBay.
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Can anyone recommend where to buy the size and style of rivets used in flieger-style straps? I am guessing these are a type of Chicago screw, but I can't find anything suitable on eBay.
I believe that they are called Chicago screws. For this one I had to cannibalise the screws from one of Eddie's straps as the strapmaker couldn't get the size I wanted either. The heads are 6mm and the holes need to be 3mm; the depth of the screw means the strap couldn't be any thicker than 4mm and even then it took a bit of squeezing to get the threads to bite.
http://carlton-browne.org/albums/Pub...y/13012016.jpg
Yes, those are exactly what I am after. I've searched on "Chicago screws" and "binding screws" but all the ones I can find seem to have either a 9mm or 10mm head. There must be someone out there who has the sole distribution rights to the watch strap industry!
Found some here via a search on WUS: https://www.jurgensgermany.com/shop/...etail?Itemid=0
$18 plus postage for a set of four, though, so will carry on searching for alternatives.
How about these?
https://www.etsy.com/uk/listing/4486...ss-steel-rivet
Just realised these are too wide, being 10mm x 6mm. The smallest they have are 8x6 - will keep looking.
I did find some, see here: https://www.jurgensgermany.com/shop/...etail?Itemid=0
$18 plus postage for four, though.
Yes I saw that link thanks. Some nice straps on there as well, if a little pricy. I'm pretty confident we should be able to find some for less than £1 each.
I wouldn't go there for two reasons. Firstly, for less than that, you can buy one of Eddie's open-ended aviator straps, get the screws and still have a spare strap. Secondly I recall seeing a couple of things over the years about Jurgens and I wouldn't give him my business.
e.g. http://forum.tz-uk.com/showthread.ph...-so-i-did-this
I appreciate that Jurgens USA and Jurgens Germany seem to be two separate companies but the above link is from the US site.
http://forums.watchuseek.com/f222/av...sa-662894.html
He used to sell extensively on MWR and I have a feeling that he may have been booted off there too.
Edit: yes, he's been banned. http://www.mwrforum.net/forums/member.php?194-J%FCrgen
And bingo (I found it by searching on Jurgen on MWR):
http://www.mwrforum.net/forums/showt...chicago-screws
https://www.tandyleather.com/en/product/chicago-screws
If you are thinking of doing an order then it might be worth getting the pack of 100 and we do a group buy. I'd happily contribute a third of $40 plus post.
The other option is I try to find them under whatever god forsaken, multi-syllable compound noun they are known as in German and see if I can find Jurgens supplier.
Unfortunately from reading the reviews of those same screws on amazon.com I think the dimensions given (6mm, 10mm and 13mm) relate to the distance between the two heads, rather than the diameter of the head. It's a shame, as I will be in New Jersey this week and could have picked them up.
Well, the good news is that I know what they're called; either Chicagoschrauben or Buchschrauben (book screws) but I can't find anything under 8mm yet.
I searched for 1/4".
What about these?
https://www.ebay.co.uk/itm/132242764412
Nope - Kappendurchmesser 10,2mm. The heads are 10mm.
Smallest I could find was 8mm heads
https://www.etsystudio.com/listing/5...ss-steel-rivet
FFS. In German :).
Eddie must be laughing if he is reading this.
Etsy Studio looks to be the most promising option so far.
I can see these that purport to be 7mm head diameter, with a 5mm barrel diameter and 4mm length: https://www.etsystudio.com/listing/2...=sr_gallery_19
Then these that are 8mm, with a 3.5mm length: https://www.etsystudio.com/listing/4...=sr_gallery_11
I may well order some to see what they are like.
7mm is pretty close but the strapmaker will need to be spot on with the holes otherwise the head may work itself loose with only a 1mm overhang around the 5mm shank.
You raise an interesting point.
Whilst recognising how historically the rivets may have served a real purpose, I was thinking that these days they are primarily for display only, as most of these style straps I've looked at seem to combine rivets with stitching.
Or have I misunderstood?
It depends on the watch you need it for - watches in what's known (rightly or wrongly) as 1928 pattern all have fixed lugs so you're a bit stuffed without working screws if you want to be able to change straps yourself. If my Helvetia used spring bars I wouldn't even know what a chicago screw is.
Of course, now makes perfect sense.
I can't find the "slap forehead" emoticon as I really should have thought that through.
I was actually looking at the fixed-lug PRS 40 this morning and thinking about how to affix a leather strap to that, other than a NATO, and usable screws would be the obvious answer - in fact I think Jurgen do such a strap.
The 8mm screws have a 4mm barrel width, so one thought would be to hold them briefly against the bench sander to take them down to 7mm, as that would then allow 1.5mm overlap.
I'll carry on looking though.....
A couple more options here:
1. I believe that these chicago screws really do have 6mm heads, although the barrel is 7mm long:
https://www.ebay.co.uk/itm/252422359661
And also thought why not just try rivets? 100 for £2.99
https://www.ebay.co.uk/itm/221428174167
Many thanks for posting these.
Looking at the photo I think the challenge with the 6x7mm is that they are designed as a standalone "post" (a bit like a dumb-bell) with the screw going into one of the bases. You can see that in the gunmetal one on the far right that doesn't have the securing screw attached.
http://i.imgur.com/ceyEvpF.jpg
My guess is that these are designed for securing a closing strap onto a bag, etc. That's going to make them a challenge to use on a watch strap unless you can grind down the base at one end. That might be an option worth pursuing, though it will depend on how deep the screw thread goes.
My experience with the rivets is that where I've used them before to replace the poppers on jacket pockets, etc. the overall quality is pretty poor. The domed cap damages quite easily. I also feel they will look cheap compared to the chicago screws, and I don't want to end up with a strap that is let down by the details.
Thanks again for posting.
Having worked out the German for these I decided to see if book screws is a thing in English and it is. They are also known as binding screws, interscrews and sex bolts as already mentioned. This link looks interesting as they say they make to order.
http://www.ukpatternbookfasteners.co.uk/index.html
Everything on their site seems to be 9.5mm (3/8") which seems to be a bit of a standard. It also appears that when a single dimension is mentioned then this almost universally refers to the length of the shaft which makes it difficult to search when you are more concerned about the head diameter.
What do you think of this? A cheap eBay strap while I figure out a really nice one. It's got its flaws but I like it more than I thought I might. It's got a rough charm - that's what I'll tell myself anyway.
https://uploads.tapatalk-cdn.com/201...a2bd21bc50.jpg
It's dark brown leather and the 'furniture' is silver apart from the metal keeper which is bronze - don't ask me why.
The strap looks alright in terms of texture and colour and obviously the roller buckle looks good. Did you punch the holes for the rivets or were they already there; they look a bit spaced out?
That doesn't look half bad!
To really do the watch justice it would be nice to find some rivets that matched the shade of steel of the watch case. Other than that I do like the textured leather in the strap itself. Carlton-Browne's comments on my other thread about Adi's strap have won me over to the roller buckle as well.
I do like the Helvetia - both yours and Carlton-Browne's have got me searching the internet - and I can see that a search for rivets could end up being a very expensive exercise!
Excuse my ignorance, but how is the pointer set on the watch dial - presumably via the bezel? I did see a part movement and case for sale in the US, but was none the wiser.
The holes were already punched. They are too far apart if you have the proper stitching like on yours Alan, but I don't mind them like that on this one. I don't know why the rivets look a bit gold, they are completely silver, at least the ones by the watch case. I'll try to get a better picture checking for reflections. The roller buckle is pretty crude, hardly precision engineering. I like it more than I thought I would but it still has the feeling of being put together by an enthusiast rather than a piece of fine leatherwork. It's also too long for my small wrists but just about wearable.
The bezel on the Helvetia rotates,
moving the pointer. It's taken me more than a year to find one that wasn't mucked about, overpriced or just trashed. CB and Wibbs have been extremely helpful - I am a complete novice and they have the real expertise. You might try mwr.com if you aren't on there already. For guidance I paid just over £500 for this one. I'm sure that is a lot more than they were 5 years ago. Equally you see £1500 quoted for some not so good examples so be warned :).
Here is another picture hopefully with more even colours. The rivets by the case do have a slight yellow cast but not as noticeable as the first picture. I expect the plating is very cheap. As mentioned before the metal keeper and the rivet by the buckle are just the wrong colour. Let's pretend they are service replacements. [Edit: the seller is sending me a replacement steel keeper and rivet].
https://uploads.tapatalk-cdn.com/201...17e175d9e1.jpg
Here is the back. The strap is lined with a kind of rough black leather.
https://uploads.tapatalk-cdn.com/201...c952a4d0a6.jpg
Since you wrote this I've been comparing my strap with others including yours, and realised how right you are. Scrap my previous answer, it's got nothing to do with the stitching.
A little bird told me today some Chicago screws of the correct size might turn up in the next couple of days. I might experiment with shortening the strap and making new holes a bit further in. This is still a dress rehearsal for getting the final strap made anyway.
Bumping this a bit... so chicago screws are indeed a thing - but here's the annoyance. From checking with buying some odds and ends on ebay the smaller sized fellas come with holes in one of the sides (grr!), as per this example:
https://farm5.staticflickr.com/4795/...89143bcd_z.jpg
and
https://farm5.staticflickr.com/4790/...d54817aa_z.jpg
.. fine one side, not so good the other. This is on a spare piece of 18mm - so getting the holes in the right place, easy enough.. and a 3mm post or thereabouts seems pretty close. [Strap/sample not skived and is stock horween cavalier in around 2mm..]
which leads me to ...
https://www.aliexpress.com/item/20-S...e635b6b7&tpp=1
.. which although not domed is pretty close to I think what might work interestingly for that sort of style.
Aliexpress looks like a way to go... a lot of the examples there have no annoying hole.
(OP) .. what size are the screws you eventually went with ..?
al
A pair of bags with goodies, which appear thus:
https://farm1.staticflickr.com/809/3...49c02a78_z.jpg
8mm across the head, 3 and 4mm gap between the two halves, no holes in the topside..
Smaller fellas are bevelled tops:
https://farm1.staticflickr.com/870/4...0ca2960a_z.jpg
.. and the slightly larger ones (4mm) have chamfered topside:
https://farm1.staticflickr.com/816/3...5622cb6d_z.jpg
.. heads are 8mm across:
https://farm1.staticflickr.com/809/4...66c969bc_z.jpg
.. think this should make for an interesting strap for some fixed bars - now off to find some pieces of cow to hack about at :eagerness:
Cost - about 12-15 UKP for each bag of 20 from China. Arrived in a shade over a week.
Chamfered bezel from this seller (Grox) available only in 4mm spaced. Shank is 4mm in both cases. There's about 913 odd matches for Chicago screws on AliExpress - this seller has most of what's interesting for putting together a watch strap I suspect - quite a lot of plated/bronze styled but these in stainless steel I figured would go with more..
al
Well you're certainly getting nearer. Yet someone somewhere is making the exact domed ones that come on straps . . .
.. Example look with edge paint - one flat head screw and one domed. As you note - I think the thing to get an exact match would be a concave top post with no 'side'..
Attachment 13571
Attachment 13572
al
You are indeed doing a fine job - far better than I managed.
Like Magirus says, I can't believe someone out there isn't selling an exact match (at a reasonable price).
A 29a is a fine excuse to try further ..
https://uploads.tapatalk-cdn.com/201...7da8075bbc.jpg
.. Wears thus :
https://uploads.tapatalk-cdn.com/201...e0f7579aba.jpg
more playing with other screw dimensions worth a go I think.
al
Sent from my iPhone using Tapatalk
Have you looked at www.chicagoscrews.com?
Err has anyone asked Eddie who makes his straps, maybe Eddie can help?
They might do - the thing is how long the post is before you can get a blind top - otherwise you end up with something a bit like ..https://uploads.tapatalk-cdn.com/201...916266e63f.jpg
al
Sent from my iPhone using Tapatalk
Any good...Amazon link?
They're brass and so should be easy enough to file down.
Edit eBay #182134551639?
Search on binding screw to see the nickel plated alternatives...mainly 1 cm diameter, however.
It is incredibly hard to find these as some of us found a while back. Hence CB recycling one of Eddie’s straps. 8mm is a bit too big, but finding 6mm/.25” ones with a 3mm length barrel seems very hard. There seem to be lots of options on Alibaba but again finding the exact size seems very hard.
I took some measurements of the screws from Eddie's strap that came with my PRS-5 Broadarrow. It looks to me like the examples in the Chicagoscrews link earlier are as near as damnit. The only dimensions they don't give are the diameter of the slotted head that would go on the back of the strap and the barrel length, but I'm sure an email would get those numbers. If the screw head is 6mm, then there should be enough overlap to prevent the screw pulling through the leather. Then, as long as the barrel length is 3.5mm or over that would be ok, as the barrel and screw thread can easily be shortened.
https://photos.smugmug.com/photos/i-...-6Q2LCsp-M.jpg
https://photos.smugmug.com/photos/i-...-2Rc6Hnr-M.jpg
https://photos.smugmug.com/photos/i-...-TqbvKGp-M.jpg
https://photos.smugmug.com/photos/i-...-zxgpZGd-M.jpg
https://photos.smugmug.com/photos/i-...-5fT93sB-M.jpg
Give this one a bump. I've been very fond of the German strapmaker, Kaufmann since Animalone brought them to my attention, and a recent browse of their site returned a result.
Bingo:
https://www.kaufmann.shop/media/imag..._1280x1280.jpg
https://www.kaufmann.shop/347/schrau...iegerband?c=45
I bought a package of small ones,, but not useful. Open on the nut side and slot on the other.
I did you some longer ones with closed ends. I placed the parts in my drill and filed the tops down to the desired diameter. The I cut the sections down to work with leather thickness. Filing and some sanding to finish them off
Worked out OK
http://rlx.homestead.com/pilotstrap.jpg