K Katchin Established Member Joined 31 Jan 2011 Messages 48 Reaction score 0 Location Lancaster 16 Feb 2011 #1 hi, i'm guessing that some companies call threads different things? is 1" x 1/8" the same as 1" x 8tpi?
hi, i'm guessing that some companies call threads different things? is 1" x 1/8" the same as 1" x 8tpi?
CHJ Established Member Joined 31 Dec 2004 Messages 20,132 Reaction score 79 Location Cotswolds UK 16 Feb 2011 #2 Yes, first expression is quoting the thread pitch, (as 1/8 of an inch) not the usual method for imperial threads where TPI, (Threads Per Inch) is the norm. Quoting thread pitch is normally encountered on metric threads.
Yes, first expression is quoting the thread pitch, (as 1/8 of an inch) not the usual method for imperial threads where TPI, (Threads Per Inch) is the norm. Quoting thread pitch is normally encountered on metric threads.
K Katchin Established Member Joined 31 Jan 2011 Messages 48 Reaction score 0 Location Lancaster 16 Feb 2011 #3 thanks