This ikan SM-501 is a heavy duty 1/4-20 stand mount with 5/8" receiver. The heavy-duty SM-501 multi-purpose stand mount gives professionals an easy way to mount to a stand. With a padded nonslip mounting surface, the 501 mounts can be used on almost any 1/4 -20 receiver. The 1/4-20 thread will screw into any light, monitor, or to any accessories. The 5/8" receiver gives users the ability to mount to any stand or accessory with a 5/8" baby pin. In addition, the SM-501 can support up to 5 lbs. of weight.