|Class of Fit:||3B|
|# of Flutes:||4|
|Size of Square:||0.238|
RECOMMENDED HOLE SIZE: 0.328"
|PRICING - UNCOATED|
S.T.I. (Screw Thread Insert) Taps are special taps for helical coil wire screw thread inserts, which provide positive means for protecting and strengthening tapped threads in any material. These STI taps are correctly sized to produce an internal thread that accomodates a helical coil wire screw thread insert. The insert, in turn, will accept a screw thread of the nominal size and pitch at final assembly. Screw thread inserts provide stronger tapped threads (stronger assemblies) due to a more balanced distribution of loads throughout the length of thread engagement.
These are reference values which depending on requirements and conditions, may need to be altered. NATC assumes no responsibility or liability of any kind as a result of utilizing these values.
Surface Treatment/Coating Available at Additional Cost
Suggested Starting SFM/RPM: