Ball Lock Pins from Carr Lane Mfg. Co.

https://www.carrlane.com/en-us/product/alignment-pins/ball-lock-pins
Ball lock pins from Carr Lane Manufacturing have a ground shank, and offer precision alignment. The pins are positive locking until released by pushing the button, which moves the center spindle forward to allow the locking balls to retract into a radial groove. Available in a wide variety of types and sizes, in steel or stainless steel. Made in USA.

Видео Ball Lock Pins from Carr Lane Mfg. Co. канала CarrLaneMfg