Countersunk Type

External Type

Where appearance or snagging are important considerations, a version with a smooth external flange and internal teeth is available.

  • For use with flat and oval head screws having either 80° or 100° countersunk angles.
  • To accommodate 82° flat and oval head screws with Shakeproof Countersunk Lock Washers.
Engineered Stampings: As you can see, ITW Shakeproof Group’s locking teeth can be incorporated in an almost endless variety of stamped shapes. This versatile design feature, whether Internal or External, or a combination Internal/External, will appreciably increase the integrity and security of the assembly. For information on how these teeth can be incorporated into your stamped component, contact or call us at 920-625-2342.