UNC UNIFIED NATIONAL COARSE DIE NUT
MAJOR DIAMETER X THREADS PER INCH:1/4 X 20
Quantity:
Pickup available at Hurrell Way Store
Usually ready in 4 hours
UNC UNIFIED NATIONAL COARSE DIE NUT
1/4 X 20
Hurrell Way Store
Pickup available, usually ready in 4 hours
38A Hurrell Way
Rockingham WA 6168
Australia
SRB - 24/7 Fittings
Pickup currently unavailable
38A Hurrell Way
Rockingham WA 6168
Australia
Best Practices for Use
- Lubricate: Always use a quality cutting or threading fluid liberally on the thread and tool before starting.
- Alignment: Ensure the die is perfectly straight when catching the first thread to avoid cross-threading.
- Action: Rotate forward to cut/chase, and then reverse the die slightly every full turn forward to clear away shaved metal chips and protect the cutting edges.
The Technical Breakdown for 1/4 x 20 UNC
- 1/4" (Nominal Diameter): This is the major outside diameter of the bolt or thread the tool fits onto, which is exactly a quarter of an inch (approx. 6.35 mm).
- 20 (Threads Per Inch / TPI): This indicates the thread pitch. There are exactly 20 individual thread crests along one inch of the bolt's length.
- UNC (Unified National Coarse): This is the standardized thread profile system used widely in the USA and Canada. "Coarse" means it has fewer, deeper threads per inch compared to UNF (Fine), making it faster to assemble and less likely to cross-thread.
- Carbon (Material): Made from carbon alloy steel. This material is hardened for strength but is specifically designed for general-purpose maintenance, repair, and chasing existing threads. It is not meant for high-production manufacturing or cutting threads into raw, high-strength stainless steel.
- Die Nut (Tool Type): Unlike a round die that requires a specialized, bulky handle (die stock), a die nut is hexagonal (6-sided). It looks like a thick, heavy-duty nut with cutting slots inside it