The Lens Cuff M4 Thumbscrew Set for Lens Cuff includes one long and two short M4 thumbscrews. The thumbscrews are used to secure a rod into the 15mm rod clamp and to secure the Lens Cuff ring onto your lens.
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
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