[Shop-talk] Old wrench sizing system

[Doug Braun]

Thanks for the info.  The alloy artifacts web site is a gold mine of
information!

Doug


On Sun, Jul 14, 2013 at 2:12 PM, Todd Walke <racertod at racertodd.com> wrote:

> Doug wrote:
>
>         Looks like it's the old school method of marking the fastener size
> on the wrench, not the size of the wrench opening as is done now.
>
> http://home.comcast.net/~**alloy-artifacts/table_oe_**wrench.html<http://home.comcast.net/~alloy-artifacts/table_oe_wrench.html>
>
>         There were three standards for nuts and bolts:  SAE, USS (US
> Standard) and Hex Capscrew.  A wrench with the same size opening might have
> three different size indications for each of the three standards.  This
> confusing system was phased out in the '20s in favor of the current
> across-flats size markings.
>
>         So your wrench was made to fit 3/4" and 7/8" diameter Hex Capscrew
> bolts/nuts.
>
> <http://www.**practicalmachinist.com/vb/**antique-machinery-history/**
> wrench-marked-fraction-**hexagon-c-208893/<http://www.practicalmachinist.com/vb/antique-machinery-history/wrench-marked-fraction-hexagon-c-208893/>
> >
> <http://home.comcast.net/~**alloy-artifacts/billings-**
> spencer-company.html<http://home.comcast.net/~alloy-artifacts/billings-spencer-company.html>
> >
>
> Todd
> Seattle,WA
> '86 GTI, Red of course. (exciting racey car) 276,000 miles
> '01 Golf TDI, silver.   (new work car)       412,000 miles
> '87 Golf, Polar Silver. (retired work car)   654,000 miles <- Gone to a
> new home :(
> http://www.pureluckdesign.com <-Ferrari & VW stuff
> ______________________________**_________________
>
> Shop-talk at autox.team.net
> Donate: http://www.team.net/donate.**html<http://www.team.net/donate.html>
> Suggested annual donation  $12.96
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe/Manage: http://autox.team.net/mailman/**
> options/shop-talk/doug@**dougbraun.com<http://autox.team.net/mailman/options/shop-talk/doug@dougbraun.com>