Overall Buckle

A two-piece fastener composed of a metal rim, with one
side designed for attaching to the garment and the other
shaped to engage the shank of an opposing pivot button.

-To fasten suspender or strap of overall to bib section.
-On shoulder straps of sportswear similar to overalls.
-On aprons, children's wear.

A strap-adjusting bar buckle is used in conjunction with
overall buckle.