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7/16 B S B Thread

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Former Member08/03/2022 12:27:01
1085 forum posts

[This posting has been removed]

RobCox08/03/2022 13:10:29
82 forum posts
44 photos

British Standard Brass is used for brass tubing, gas fittings and general brass work (quoting from machinery's handbook here).

It will be 26TPI, Whitworth form. Easy enough to make on the lathe if you've got the wherewithal. Whether you can find one off the shelf that easily is another matter.

Mick B108/03/2022 13:20:45
2444 forum posts
139 photos

Looks like you can get a carbon steel die for 4 quid from Tracy Tools.

Former Member08/03/2022 13:47:44
1085 forum posts

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DC31k08/03/2022 13:57:17
1186 forum posts
11 photos

If you just need something with a 7/16" x 26 tpi male thread on it to plug a hole, seek out a suitable BSCY (or CEI) fastener. PTFE tape is your friend and the 5 degree thread angle difference helps it to seal better.

RobCox08/03/2022 17:44:30
82 forum posts
44 photos

Bill, if it's any use to you, I found this hiding in a piece of brass offcut:

20220308_173157.jpg

The threads are about 1/2" long, 0.437" OD 26TPI, the flats fit the spanner it's pictured with. If you want it, PM me with an address and I'll drop it in the post.

Rob

Former Member08/03/2022 18:38:30
1085 forum posts

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