5/64 Inch X 1 Inch Plain Spring Steel Split Spring Pin They have a button that

They have a button that releases their locking mechanism to allow the pins to be removed

GLOVES-MECHX SFTY FASTFIT XL

Solid pin with standard flat head that secures with a hitch pin clip or cotter pin through a hole drilled in the opposite end

1-1/8 FLAT WASH F436 GALV

The contents of this jug can then be dispensed through the molded drain and spigot configuration

5/64 Inch X 1 Inch Plain Spring Steel Split Spring Pin They have a button thatA spring pin is a hollow split dowel pin that exerts uniform outward pressure when fitted into a nut or shaft hole. Also called a roll pin the spring pin withstands side loads and rotational friction making it ideal for securing shaft and axle connections. Spring pins are also easy to insert and remove. For higher load applications where vibration and shocks are a problem use a coiled spring pin.