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Through hole taps
Series Thread- Color Class of Standard Chamfer Substrate Finish Page
Type Ring Fit Lead No.
UNC
3996 UNC 3B ANSI B Cobalt TiN coated 66
3907 UNC 2B ANSI B PM cobalt TiN coated 66 Index
1980 UNC 2B DIN 371 B Cobalt bright finish 66
1985 UNC 2B DIN 376 B Cobalt bright finish 66
UNF UNF
3B ANSI B Cobalt TiN coated 67
3997
3908 UNF 2B ANSI B PM cobalt TiN coated 67
1990 UNF 2B DIN 374 B Cobalt bright finish 67
METRIC
6H ANSI B PM cobalt TiN coated 68
3906 Metric
877 Metric ISO 2 (6H) DIN 371 B PM cobalt bright finish 69
879 Metric ISO 2 (6H) DIN 376 B PM cobalt bright finish 68
1870 Metric ISO 2 (6H) DIN 371 B Cobalt bright finish 69
1872 Metric ISO 2 (6H) DIN 376 B Cobalt bright finish 68
METRIC FINE
1873 Metric ISO 2 (6H) DIN 374 B Cobalt bright finish 69
Fine
UNC
3992 UNC 2B DIN / B PM cobalt TiN coated 78
ANSI
UNF
3994 UNF 2B DIN / B PM cobalt TiN coated 78
ANSI
General Alloyed & Unalloyed Stainless High Tensile, Cast Iron Aluminum Titanium 5
Purpose Steels Steels Tool Steels and Alloys or Nickel
For a complete description of workpiece materials and which color ring they fall under, please see the Tap Compass at the beginning of the catalog
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