STUB ACME Threads are similar to ACME threads except that the thread depth/ height is less than ACME. These are used for thin walled applications, where coarse pitch is needed like tubes used in Oil fields equipments, where standard ACME threads can not be used due to thin wall.
• American Specifications:ANSI/ ASME B1.8 - 1988.
• B.S Specifications: B.S 1104 - 1957
Thread Plugs , Thread Rings, Check Plugs & Wear Check Plugs of Diameter from 1/4" to 14" and TPI from 16 to 2.
For more Technical Details on Stub Acme Threads download, Technical Information sheet from link given below.