System “ARRI” with 9 different screw on possibilities (5x 3/8″ and 4x 1/4″). Prevents twisting due to retractable, spring-borne Spikes. As a result of the spring-borne Spikes, this also applies to all other cams with 1/4″ treading.

1/4″ screw with socket for hexagon wrench (WAF): 4

Technical specifications:

• Length: 60mm
• Width: 28mm
• Height: 28mm
• Weight: 110g