Where to get 1/16 stainless washers?

[Bruno]

For some reason I can't seem to find stainless washers for 1/16 rod. Preferably in 316 stainless.
I did find a shop online, but they had a 75$ minimum order size.
1/8 is easy enough to find, but 1/16 far less so.

[osdset]

This UK e bay seller
50 x 10 BA Instrument Washer Stainless Steel for Bolt SP24Y [o1 | eBay

[Substance]

Have you looked at 316ss shim material and a 1/16 drill and hole punch or I have used this mob railcar.com in AUSTRALIA
MICRO FASTENERS MULTI SCALE
They have the following
FWS00 Flat Washer #0, Stainless (1/16") for 10c AUD each

[Bruno]

This UK e bay seller
50 x 10 BA Instrument Washer Stainless Steel for Bolt SP24Y [o1 | eBay

Thx. Out of curiosity: how would I know that the inner diameter is 1/16? The listing doesn't specify it.

[Substance]

British Tools & Fasteners - BA Thread Profile
This site has a conversion chart Bruno
BA 10 looks to be 0.067" (1.7018mm) inside so slightly more than the 1/16" (1.5875mm)
Should work fine

[Bruno]

This site has a conversion chart Bruno
BA 10 looks to be 0.067" (1.7018mm) inside so slightly more than the 1/16" (1.5875mm)

I think is in order here.

You'd think that things like rod / washer / screw / ... diameter sizes would have uniform identifications.
So far I've seen
- actual diameters
- # numbers
- names
- and now this



At least the germans got this right by standardizing to mm. An M3 bolt is 3 mm wide and truned by an M3 wrench, and will fit an M3 screw with M3 washers which can also be used on M3 stainless, brass, or whatever rod stock which fits holes made by an M3 drill bit.

Anyway, thanks for the conversion chart.

[Splashone]

What you are wishing for was used long ago and abandoned.

https://en.wikipedia.org/wiki/Whitworth_thread

Much like the metric system. 5/8" wrench fits nut for 5/8" diameter bolt. Unless you get to mid 1900's MG's which used whitworth heads on metric threads!

[Bruno]

Much like the metric system. 5/8" wrench fits nut for 5/8" diameter bolt.

From 1/8 upwards, I see the units mentioned consistently. Below that, people have come up with various other things. For 1/16, I now know of 4 different ways that are sometimes used. first, 1/16, which seems to be rarely used. Then I know that 0-80 is used for microfasteners. I've also seen #0 used. And now I got a link for BA10 washers.

I don't care much about which standard is used for something, but using 4 or more standards in a mix is not terribly efficient or convenient. Metric is not necessarily better than empircal, but the main advantage is that it is used consistently, from sub mm upwards.

[Splashone]

That's because you are asking for 1/16" fasteners which don't exist. 0-80 is a thread size (0 diameter and 80 threads per inch). It uses #0 washers (It happens to have a clearance drill size of 1/16"). Going up in size there are 1-72, 2-56, 3 is not commonly used, 4-40, 5-40, 6-32, 8-32 (about 1/8"), 10-32 (3/16"). So as you can see, this allows for far more bolt sizes than 1/16" increments would allow.

[Bruno]

I understand that there are more increments than 1/16th. But how does that matter? I would expect that a 1/16 screw would have 1/16 inner diameter washers. And if you have 5/32 diameter or whatever, you'd have 5/32 washers. Up to 1/64 is commonly used in measurements, so there is no reason I see why you wouldn't use that instead of '0', '1', etc.

Btw, In small dimensions, the metric system is used just the same as with larger dimensions. For example. M1.2 is a valid size, indicating a diameter of 1.2 mm, which has standards for M1.2 washers, M1.2 nuts, etc.