The Nuts n Bolts of it all…

Have spoken to some bolt suppliers recently for replacement and surplus of fasteners for an old style C&P…. “mmmm? Haven’t seen these before”.. was the response. Anyone care to shed some light on the subject?… Best suggestion so far was to find a 90 year old mechanic who used to service the print industry.

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Not a surprise. Vandercook has many unique screws as well. The only place to get them is from NA Graphics and hope Fritz has had them remanufactured. Avoiding off-shelf parts was probably a way to keep other companies from easily copying the press. It happened anyway.

You could also go to a machinist and have some made. Example: the three bolts (machine screws, actually) which hold in the main shaft bearing assembly on an OS C&P 8x12 are 5/16”, with 16 threads per inch - this is a standard size, but not a standard thread pitch. Any competent machinist with a metal lathe can make you some. There is typically a $100 minimum setup charge, so you’d best have them make as many as they can at the minimum.

The C&P and other early 1900s printing equipment use threads that were common before the SAE standards were introduced (for the auto industry) such as American Standard 8-pitch, 12-pitch and 16-pitch. In some sizes they coincide with SAE.

neveroutofsorts, this might be a good project for that newfangled stereolithography. best james

Find somebody out there with a metal lathe and run down to your nearest steel dealer (or order online) appropriate sized hex stock (the size of the bolt head). Even with a crummy lathe (without half-nuts) a person can machine replacements—I had to to mount a full length found on my 10 x 15 OS C&P. I don’t think Sterolithography will be able to do threads for quite some time.

Vandercook threads tend to be NF.

Doesn’t matter what the press is, the first thing you need after purchase is a micrometer, then a tap and die set. Make your own threads.


neveroutofsorts, I was being cynically sarcastic.Mikefrommontana has given you sound advice.
In my 30 years of printing machinists and blacksmiths
have come to my rescue many times,and by the way they are
three dimensional. Especially after 26 years stereolithography
has yet to prove itself. best james

Thanks for the feedback… certainly explains why.
Creating a supply from hex stock seems the way to go for myself.