The Aputure Super Clamp with 3/8" anti-rotating pin thread is a mounting clamp compatible with 3/8" screw fixtures and accessories. Featuring a cold shoe and 1/4-20" threads, this can be used to secure Aputure lights and accessories onto a variety of surfaces. Its max payload capacity is a STORM 80c with a CF4 Fresnel and CF4 Barn Doors ( 1.92 kg / 4.23 lbs).