מנעול זרוע Pin-Lock Security Knob for B Size Socket Arms
The RAP-S-KNOB3U is a security knob with a 1/4"-20 female thread and key, designed to replace all knobs on B-sized mounts with a 1-inch diameter. It enhances mount tightening for heavy loads or extreme vibration environments.
- The description claims the RAP-S-KNOB3U prevents slipping in heavy load or extreme vibration environments.
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