Description: M5 20mm rotating thumb screw knob for Rod Clamp Rail Block DSLR Rig Support V3. It is spring loaded, and can be pulled out and turned to a more user friendly position after being tightened. Durability:Made of aluminum and metal. 7-shaped Design:Convenient and comfortable adjustment. Just the screw, not include any other items. Specification: Material:Aluminum Alloy Thread: M5 (Diameter:5mm) Length of Thread:20mm Color:Red Package Includes: 1 Piece M5 Adjustable Screw
