The prime purpose of offering this bolt in our line it for covering anchor threads when the anchor is not in use. Sometimes anchors are installed before the equipment can be attached, and sometime the equipment is seasonal (e.g. parking barriers are removed for the winter). The rounded and low profile of this bolt's head prevent pedestrian tripping over the bolt, while sealing the thread of the anchor against dirt.
The bolt can not be used to install MySpot 200, our sister company's parking barriers. The MySpot 200 mounting plate requires low profile bolts and this head is too high.