In a message dated 1/13/2006 12:35:31 P.M. Pacific Standard Time, [EMAIL PROTECTED] writes:
information would be from hobbyists such as your selves. Experience tells. I purchased some 1/4 - 20 machine bolts from one of those "super market" hardwares, and at the same time purchased 1/4 - 20 hex nuts for a project I was working on. When I got home I found the nuts would not fit the threads on the machine screws. A little checking showed the screws were oversize by several hundredths. Thought I could use them if I ran a 2/4 - 20 die down the threads. That attempt broke my die right in half, there was some plating on the screws that was as hard as a carbide lathe bit. I think the problem is the big box stores buy wholesale from China or someplace where American measurements are a complete mystery. Another example are the lathes and milling machines sold by Harbor Freight and others that have 16 TPI threads on the lead screws and collars marked in 1/1000 per division. If you go a complete turn there is 0.0625 left over and with a short division mark. Spoiled a track gauge I was making for my 3-1/2 inch track layout in my back yard. (Had to go past three of those strange marks) I couldn't wait to order new nuts and screws for my milling machine that are 20 TPI and the thimbles are properly marked. My old independently owned hardware was the kind where if you mentioned to the owner that you needed a 3-48 left hand tap he would go in back and look around and find one. One experience I had at our local H.D. was when I was looking for plywood to build a boat. I knew better than to ask about "marine plywood" so asked for fir ply with exterior glue line or plain ACX (A=good side, C=rough side, X=exterior glue) The kid informed me that none of their plywood is exterior since they keep it inside the warehouse. Oh Well that is the society we are living in today. John Meacham in the high desert of California 3-1/2 inch gauge LBSC Virginia and LBSC Tich -------------- next part -------------- An HTML attachment was scrubbed... URL: http://postfix.45mm.com/pipermail/sslivesteam/attachments/20060113/6e918a58/attachment.html _______________________________________________ SSLiveSteam mailing list Send messages: [email protected] Cancel subscription: http://postfix.45mm.com/mailman/listinfo/sslivesteam Rules: http://www.45mm.com/sslivesteam_guide.html
