Knock Pin A Type

This simple dowel pin does not require fitting hole accuracy.
Connects using the protrusions molded on both side of the groove.
The fitting hole recommended tolerance for a nominal diameter of up to 3 mm is H9, and H11 for anything larger.
Material = free-cutting steel; surface processing = nominal diameter less than 4 mm: unprocessed, 4 mm or more: black oxide finish.