I am about to buy a tap and die set. Very useful since I can machine stuff.
As I live in europe pipe threads are not NPT, but BSP. I found a cheap set with decent quality, but the threads are BSW and not BSP.
BSP is a form of BSW thread, but now I want to know:
Is BSPP (BSP parralel) exactly the same as BSW?
This is the tap and die set I am about to buy:Clicky
BSP and BSW threads.
- ALIHISGREAT
- Staff Sergeant 3

- Posts: 1778
- Joined: Sat Aug 25, 2007 6:47 pm
- Location: UK
BSP is British standard pipe.
BSPP is British standard pipe parallel (thread is parallel)).
BSPT is British standard pipe taper (thread is tapered)
for the smaller thread sizes (like 1/4") it doesn't matter too much if you mix BSP and BSPT, but above that you start to get problems.
BSW is British standard whitworth which is a screw/bolt thread, not a pipe thread.
here are the dimensions if you want to check if its the same as BSPP
http://www.boltscience.com/pages/screw4.htm
Hope that helps.
BSPP is British standard pipe parallel (thread is parallel)).
BSPT is British standard pipe taper (thread is tapered)
for the smaller thread sizes (like 1/4") it doesn't matter too much if you mix BSP and BSPT, but above that you start to get problems.
BSW is British standard whitworth which is a screw/bolt thread, not a pipe thread.
here are the dimensions if you want to check if its the same as BSPP
http://www.boltscience.com/pages/screw4.htm
Hope that helps.
<a href="http://www.bungie.net/stats/halo3/defau ... player=ALI H IS GREAT"><img src="http://www.bungie.net/card/halo3/ALI H IS GREAT.ashx"></a>



