TYPE
1 . . . FOR METAL
Just provide the hole and drive
the screw - . . tapping is elimi.
noted in the fastening of a broad
range of steels, structural shapes,
and special alloy steels. The ex-
clusive off-center slot provides
true cutting action. Shakeproof
Thread-Cutting Screw, may be
removed and redrive. |
TYPE
23 - - . FOR METAL
AND PLASTICS
The cit-purpose thread-cutting
screw - . - wide cutting slot with
acute cutting angle for fast, easy
cut and ample chip clearance.
Recommended for cast iron and
zinc, aluminum die castings, and other
soft metal applications. For tough applications
in hard metals
or plastics, |
TYPE
25 . - . FOR PLASTICS
Shakeproof's onswer to the problems of
plastics fastening . . combines wide
thread-cuffing slot and acute cutting
edge with specially spaced thread for
low driving torque,high stripping torque,
extra-free cutting action Non-clogging
slot diverts chip downward as screw is
driven - prevents chip jam-up . . - possibility
of fracturing even the most brittle plastics
minimized . . - need for costly thread
inserts eliminated. Simple methods of
plastics assembly made practical!
Savings assuredl |
