A clamp with a spigot and a maximum opening of 3.5 cm is a very convenient accessory both in the studio and on location for securing lighting fixtures, reflectors, studio flashes, various accessories, on any profile. The clamp with screw attachment features a 5/8-inch male spigot as well as a screw with a universal 1/4-inch thread, facilitating the attachment of any accessory with a maximum weight of 4 kg in any position.