Metric Round Threading Die - Right Hand Alloy Steel Button Die, M1 to M14 Coarse & Fine Pitch, Single Die

This metric round threading die (also called a button die) cuts new right hand external threads on rod and studs and cleans up damaged threads on bolts. Choose from 48 sizes from M1 to M14 in coarse and fine pitches, from tiny M1x0.25 for model and instrument work up to M14x2.0.

Use it in a die stock (die handle) for hand threading, or in a die holder on a lathe.

Specifications

• Type: round (button) threading die, right hand thread
• Material: alloy steel (supplier-listed)
• Sizes: M1 to M14, coarse and fine pitch (see the Thread Size menu)
• Small sizes: M1x0.25, M1.1x0.25, M1.2x0.25, M1.4x0.3, M1.5x0.3, M1.6x0.35, M1.7x0.35, M1.8x0.35, M2.2x0.45, M2.5x0.45
• M2x0.4 offered in 12mm OD and 20mm OD
• Fine pitch examples: M8x1.0, M10x1.25, M12x1.5, M14x1.5
• Package: 1 die in the size you select

How to read the size

M10x1.5 means a 10mm thread diameter with 1.5mm between threads. The standard (coarse) ISO pitches are M3x0.5, M4x0.7, M5x0.8, M6x1.0, M8x1.25, M10x1.5, M12x1.75 and M14x2.0; the other pitches listed are fine threads, common on automotive, bicycle and precision parts.

FAQ

Can it cut new threads or only repair them?
Both. On plain rod of the matching diameter it cuts a new thread; on a bolt with damaged threads it re-cuts and cleans the existing thread of the same size and pitch.

Which pitch do I need?
Match the nut or tapped hole. If you are unsure, measure the distance between threads with a thread pitch gauge, or start from the coarse pitch for that diameter, which is the most common.