A sturdy shoulder on these spring-loaded plungers provides a fixed seating position and positively resists detent force. The new plungers come in light or heavy force, six sizes each, in steel or stainless steel, with a stainless or Delrin ball. They are useful when a threaded hole would be impractical and/or adjustment is not required.

Carr Lane Mfg. Co., 4200 Carr Lane Court, St. Louis, MO 63119, (314) 647-6200, carrlane.com