BSP and BSW threads.

A place for general potato gun questions and discussion.
User avatar
psycix
Sergeant Major 4
Sergeant Major 4
Posts: 3684
Joined: Mon Jun 25, 2007 7:12 am
Location: The Netherlands

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
Till the day I'm dieing, I'll keep them spuddies flying, 'cause I can!

Spudfiles steam group, join!
User avatar
ALIHISGREAT
Staff Sergeant 3
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.
Post Reply

Create an account or sign in to join the discussion

You need to be a member in order to post a reply

Create an account

Not a member? register to join our community
Members can start their own topics & subscribe to topics
It’s free and only takes a minute

Register

Sign in

  • Similar Topics
    Replies
    Views
    Last post