Sutton M4381666 3/8"-19 BSPT Button Die 2" OD - Carbon Alloy Steel

The Sutton M438 is a carbon alloy steel button die for cutting a new male (external) BSPT (Rc series, British Standard Pipe Taper) thread on studs. It is a solid round die, 2" (50.8 mm) OD, in 5 sizes, 1/8" to 3/4", that fits into an adjustable guide or plain die stock handle.

Made from carbon alloy steel. Carbon alloy steel threading tools are not suitable for precision, safety or critical threads: they are for general purpose and DIY use only. The cutting teeth provide a general purpose thread. Applications include DIY, trade, automotive, plumbing, metalworking and MRO work.

Where this product is used

• Cutting new male (external) BSPT threads on studs.
• General purpose and DIY threading where a precision thread is not required.
• Applications include DIY, trade, automotive, plumbing, metalworking and MRO work.

Design features

• Carbon alloy steel: suitable for general purpose and DIY use only.
• Cutting teeth: provide a general purpose thread.
• Solid round die: fits into an adjustable guide or plain die stock handle.

Sizes and item numbers

Match the die OD (2") to your die holder or die stock.

Using the button die

• Use a guide or die stock that matches the 2" OD of the die.
• Chamfer the end of the stud or rod and start the die square, turning forward and backing off regularly to break the chip.
• Use a cutting fluid suited to the material being threaded.
• Use for general purpose and DIY threads only.

Key specifications

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Related Sutton threading tools: M418 BSW 1" OD button die and M420 BSW 2" OD button die. Browse threading dies and sets and threading tools.