Use a thread cutting screw in materials where the
internal stress caused by the point would be disruptive or undesirable.
The slots and flutes of the thread cutting screw will reduce required
tightening torque. They are recommended for use in materials that
would otherwise require excessive torque to tighten screw down.
|| Look for spaced threads which taper
and lead to a blunt point. There are multiple cutting slots
and chip cavities running up the tapered area. Threads may
be complete or incomplete at the manufacturer's option.
||Recognized by the spaced incomplete and tapered
threads leading to a blunt point with a flute cut out at the
tip. For use in ABS plastic, fiberglass, nylons and other
||Threads are machine screw style tapering to a
blunt point. A cutting slot runs up the tapered end. For use
in aluminum, zinc and lead die-castings, sheets or shapes
but ca be used in iron, brass and plastics also. Also known
as Type "D".
||Recognized by the machine screw threads which
may be complete or incomplete at the manufacturer's option.
Multiple cutting slots lead to a tapered blunt point. For
use in aluminum, zinc, lead, brass, iron die-castings, and
more rigid plastics.
||Similar to Type 1 with machine screw threads
leading to a blunt point are characteristic or this screw.
The point has a slot completely through the diameter of the
screw for good thread cutting and chip clearing. Use in same
materials as Type 1.
||Similar to the Type 25 except having a machine
screw thread. The blunt point has a flute for maximum thread
cutting and chip clearing. Also known at Type "T".