Through-tapped metric OD inserts offer a hybrid of Metric OD inserts and blind self-tapping inserts. They are shouldered, undercut and have metric internal threads. However the main difference that makes these inserts stand out is the
external threads are a 30 degree self-tapping form with a three notch cutting relief that work in a similar way as the blind self-tapping inserts.


This type of insert has a special 30 degree external tapping thread, and three milled notches to aid the cutting action. Also available with a blind tapped thread, these inserts are manufactured in stainless steel 303 and marine grade stainless steel 316.

Nominal Thread Size M4 M5 M6 M8 M10 M12
Length 10mm 12mm 14mm 16mm 20mm 26mm
ID M4 X 0.7 M5 X 0.8 M6 X 1.0 M8 X 1.25 M10 X 1.5 M12 X 1.75
OD 6.0mm 8.0mm 9.0mm 12.0mm 14.0mm 16.0mm
OD Thread-Type & Pitch 30 degree flank self-tapping P=1.25mm 30 degree flank self-tapping P=1.5mm 30 degree flank self-tapping P=1.75mm 30 degree flank self-tapping P=2.0mm 30 degree flank self-tapping P=2.5mm 30 degree flank self-tapping P=2.75mm
Cutting Relief 3 x milled notch 3 x milled notch 3 x milled notch 3 x milled notch 3 x milled notch 3 x milled notch



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