Die Nuts

A die nut, also known as a thread chaser, is used for sharpening an existing thread. It is run over threads that may have been damaged or blunted over time to correct them to their original condition. It looks the same in appearance to a square or hexagonal nut. They are easy to use and can be operated using an ordinary box spanner or set spanner. They are available in various sizes, types and threads, with this information being engraved on their front surface or face.


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Description Price Thread Size Pitch Diameter Across Flats Number of Pieces Thickness Material
RS Stock No. 424-217
BrandRS PRO
$81.24
Each
units
M12 1.75mm 1.1in 1 0.5in HSS
RS Stock No. 300-7521
BrandRS PRO
$250.81
1 Set
Set(s)
1/4 → 1/2 in UNF - - 5 - Carbon Steel
RS Stock No. 424-229
BrandRS PRO
$32.40
Each
units
M6 1.0mm 0.71in 1 0.25in HSS
RS Stock No. 424-213
BrandRS PRO
$43.11
Each
units
M10 1.5mm 0.92in 1 0.375in HSS
RS Stock No. 300-7537
BrandRS PRO
$254.57
1 Set
Set(s)
1/4 → 1/2 in UNC - - 5 - Carbon Steel
RS Stock No. 424-223
BrandRS PRO
$37.83
Each
units
M8 1.25mm 0.82in 1 0.3125in HSS
RS Stock No. 506-4318
BrandRS PRO
$225.16
Each
units
M3 to M12 - - 7 - HSS
RS Stock No. 424-239
BrandRS PRO
$12.12
Each
units
M4 0.7mm 0.71in 1 0.25in HSS
RS Stock No. 424-235
BrandRS PRO
$23.36
Each
units
M5 0.8mm 0.71in 1 0.25in HSS
RS Stock No. 300-7515
BrandRS PRO
$242.58
1 Set
Set(s)
M5 to M12 - - 5 - Carbon Steel
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