The Parker screw

Bindlestiff · 07-07-2017, 12:25 PM

I saw a posting in the members only area about Parker screws for underlifters and I started to make this post there but I felt that I was about to steal that thread. So, I am starting a thread on the topic here.

Some of you may find this interesting?

This is an article I worked on years ago for Parker Pages. I learned a lot while digging up the information and the other thread sparked the idea to share it with this forum.

Jean Swanson · 07-08-2017, 08:08 AM

Interesting article Robin

Thanks for sharing
Allan

Twice Shooter · 07-08-2017, 10:14 AM

Very interesting Mr. Robin. Thank you for not only writing this also but bringing it to our attention. Cheers, Tom

Robert L. Smith · 07-09-2017, 05:03 PM

Great paper, Just a note on 30 TPI etc. I do a lot of early antique car work and have found a lot of screw pitch that is between NC and NF. before 1915 about lots of screws were 10-24 or 1/4-24 for example rather than the 32 and 28 standard. Delco on their distributors used a 10-30 well into the late 1930's. you never quite now what you are going to find on early stuff.

Just some tidbits