The difference with a standard spring bar is that it has no thickening/collar (shoulder/collar) at the end of the bar. This allows it to fit more smoothly in certain watch straps.
In short, they are used whenever maximum flexibility is needed or a clean, collarless profile is desired without the spring bar pressing against the strap or case.
Order a spring bar removal tool to make it even easier to remove the strap yourself. This tool will not damage your bracelet.
Product data
Size: 19mm
Thick: 1.5mm
Number: 2 piecesSpringbars are also called pushpin.